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Junk Food Consumption and Symptoms of Mental Health Problems: A Meta-Analysis for Public Health Awareness

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  • Universitas Indonesia Maju
  • Universitas Indonesia Maju

Abstract and Figures

Junk food consumption increases the risk of having symptoms of mental health problems. This study aimed to conduct a meta-analysis to assess the association between junk food and symptoms of mental health problems. Six researchers, two primary researchers, and four assistant researchers, from October to December 2020 conducted a systematic literature review. The data sources were selected from Pubmed and Science Direct articles published from 2010 to 2020. Those websites were check-marked for text availability for original articles, using keywords for junk foods and mental health. This study had inclusion criteria for selecting and organizing articles using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guideline. The full-text articles were selected for conducting a meta-analysis using R Studio Software. The 5,079 article titles were obtained, seven of which met the relevant requirements for meta-analysis. The range of respondents who experienced symptoms of mental illness was 1.38%–79.8%. There was no heterogeneity based on the Tau-square test. The correlation coefficient was 0.11 (95% CI 0.09–0.14), with no publication bias based on Egger’s Regression test (0.6023 or p-value>0.05). The frequent consumption of junk food can contribute to mental illness symptoms, even with minimal effects.
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Abstract
Junk food consumption increases the risk of having symptoms of mental health problems. This study aimed to conduct a meta-analysis to assess the asso-
ciation between junk food and symptoms of mental health problems. The study was conducted by a systematic literature review from October to December
2020. The data sources were selected from PubMed and ScienceDirect articles published from 2010 to 2020. Those websites were check-marked for text
availability for original articles, using keywords for junk foods and mental health. This study had inclusion criteria for selecting articles and organizing articles
using the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) guideline. The full-text articles were selected for conducting a meta-
analysis using R Studio Software. The 5,079 article titles were obtained, seven of which met the relevant requirements for meta-analysis. The range of res -
pondents who experienced symptoms of mental illness was 1.38%–79.8%. There was no heterogeneity based on the tau-squared test. The correlation coef-
ficient was 0.11 (95% CI = 0.09–0.14), with no publication bias based on Egger’s regression test (0.602 or p-value > 0.05). The frequent consumption of junk
food can contribute to mental illness symptoms, even within minimal effects.
Keywords: children, junk food, mental health problems, meta-analysis
Junk Food Consumption and Symptoms of Mental Health
Problems: A Meta-Analysis for Public Health Awareness
Muhammad Hafizurrachman1*, Risky Kusuma Hartono1
1Department of Public Health, Sekolah Tinggi Ilmu Kesehatan Indonesia Maju, Jakarta, Indonesia
Introduction
Mental illness symptoms, such as stress, depression,
and anxiety, causes long-term nervousness and psycho-
logical problems,1weight loss,2drug abuse,3self-
torture,4suicide,5murder,6and premature mortality.7In
Indonesia, people with mental disorders were isolated us-
ing tied ropes or “dipasung,” to prevent them from en-
dangering the lives of others.8People in any age group
can have a mental illness, including children.9In fact,
children might have prolonged mental illness up to their
adulthood.10
A study showed that the risk factors for mental illness
are social environment, family issues, and violence.5
Several studies also revealed that a healthy diet con-
tributes to reducing the risk of mental illness.11 Con -
sumption of fruits and vegetables is believed to improve
mental health because micronutrients such as vitamins,
antioxidants, and minerals protect against mental ill-
ness.12 Unfortunately, the habit of fruit consumption has
been pushed aside by the increasing trend of high
salt/sugar-laden diets.
The habit of junk food consumption has increased
around the world.13 Foods with high sugar and salt con-
tent are widely recognized as causes of non-communica-
ble diseases such as diabetes, heart disease, and stroke.14
Recent evidence demonstrates an association between
junk food consumption and an increased risk of mental
disorders.15 Previous studies only applied meta-analysis
techniques between nutritious foods and mental prob-
lems. The results did not include junk foods to quantify
the findings.16
Method
The systematic literature review (SLR) was conduct-
ed by six authors, consisted of two primary authors and
four authors assistants, organized from October to early
December 2020. The SLR refers to the guidelines for sys-
tematic review and meta-analysis, called the Preferred
Reporting Items for Systematic reviews and Meta-
Analyses (PRISMA) guideline.17 This study has been
regis tered to the International Prospective Register of
Systematic Reviews, known as PROSPERO, with ID
CRD42020218992 and accepted as a type of systema tic
review and meta-analysis. PROSPERO is an international
database of prospectively registered systematic reviews,
rapid reviews, and umbrella reviews in health and social
Hafizurrachman et al. Kesmas: Jurnal Kesehatan Masyarakat Nasional (National Public
Health Journal).2021; 16 (1): 1-8
DOI: 10.21109/kesmas.v16i1.4541
Correspondence*:
Muhammad Hafizurrachman, Department of Public Health,
Faculty of XX, Sekolah Tinggi Ilmu Kesehatan Indonesia Maju, Harapan Street
No. 50 Lenteng Agung, South Jakarta, Jakarta, Indonesia, Email: hafizurrach-
man@gmail.com, Phone: +62 818 120 663
Received : December 17, 2020
Accepted : January 03, 2021
Published: February 20, 2021
Copyright @ 2021, Kesmas: Jurnal Kesehatan Masyarakat Nasional (National Public Health Journal), p-ISSN: 1907-7505, e-ISSN: 2460-0601, SINTA-S1 accredited,
http://journal.fkm.ui.ac.id/kesmas, Licensed under Creative Commons Attribution-ShareAlike 4.0 International
Kesmas: Jurnal Kesehatan Masyarakat Nasional
(National Public Health Journal)
2
care also does not accept scoping reviews or literature
scans. Key features from the review protocol are record-
ed and maintained as a permanent record in PROS-
PERO. The Ethics Committee has approved the study at
Sekolah Tinggi Ilmu Kesehatan Indonesia Maju, referen -
ce number: 2417/Sket/Ka-Dept/RE/STIKIM/IX/2020.
The source of this study used was from PubMed and
ScienceDirect website. The reason for choosing these two
databases was because they are well-known health data-
bases and their bibliometrics offer free and easy access to
verify work conducted by others. The first step is to go to
the address https://pubmed.ncbi.nlm.nih.gov/. Then en-
ter keywords into the website search engine, re presenting
study material to find relevant articles. On the PubMed
website, “check-mark” the text availability article (full
text and free full text), article type (book and documents,
clinical trial, and Randomized Control Trial), with the
publication of the last ten years (2010–2020). For
ScienceDirect: go to the address https://sciencedi -
rect.com. Do the same as with the PubMed website, by
specifying the article type or research article, “check-
mark” all categories for the publication title, and all sub-
ject areas.
The next step was following the PRISMA guideline.17
The guideline was: 1) Identifying: It was to identify the
titles of relevant journal articles in the search column on
the two website addresses for this study, the authors used
keywords for study themes by using quotation marks or
apostrophes. For two or more keywords, the authors
used the boolean symbol “AND” between keywords. The
keywords used to find articles related to junk food con-
sumption (as an exposure) and mental illness (as an out-
come) are: “junk food” and “mental health,” “Junk food”
and “mental disorders,” “Junk food” and “depression,”
“junk food” and “stress,” “junk food” and “sadness,”
“junk food” and “insomnia,” “junk food” and “anxiety;”
“mental health” and “snacks,” “mental health” and
“bread,” “mental health” and “ice cream,” “mental
health” and “chocolate,” “mental health” and “sweetened
food,” “mental disorder” and “snacks,” “mental disorder”
and “bread,” “mental disorder” and “ice cream,” “mental
disorder” and “chocolate,” and finally, “mental disorder”
and “sweetened food.” Additionally, junk food compo-
nents were defined as “canned food,” “chocolate,” “in-
stant noodles,” and “bread,” paired with “processed
cheese,” “frozen cake,” “ice cream,” “candy,” “baked
food,” and “dried sweet food”.18–20 Duplicate articles
that appeared several times during keyword searches
were not reused; 2) Screening: to screen journal articles'
titles, select the article title that matches the research
theme. All abstract identifications were read and re-
viewed based on the inclusion criteria. The inclusion cri-
teria are that they are original articles discussing junk
food and mental health. Study interviews were conducted
in person and written in English, and the study's method
was quantitative. Mental health inclusion criteria were
“depression,” “stress,” “sadness,” “insomnia,” and “anx-
iety” because these five disorders have a high prevalence
worldwide.18,19 Abstract articles that did not meet the
criteria were eliminated; 3) Eligibility: Selected journals
that meet the inclusion criteria should be downloaded
with full text. The criteria prevail to both open- and
closed-access journals. All journals are reviewed and se-
lected to find the association between junk food con-
sumption and symptoms of mental health problems.
Articles where no associations were found will not be
used; 4) Included: All journals articles at this phase that
meet all the inclusion criteria are arranged by author
year, country study, study design, study period, sample
size, number, respondents, average age, type of junk
food, consumption frequency, cases of mental problems,
sample case(s) of mental problems, percentages, covari-
ates, and OR values. This data is required to compute a
meta-analysis using R Studio Software, an open-source
software named “The Metaphor Package” (can be down-
loaded from https://cran.r-project.org/package=
metafor). The OR values of journals that were not found
were excluded.
The final step calculates the meta-analysis by showing
the three components: 1) heterogeneity figure (Q-statis-
tic, I-squared, tau-squared). It seeks to obtain whether
the data results on the selected journals are homogenous
or heterogeneous; 2) Looking at the publication bias fig-
ure (Funnel Plot, Egger's regression test) with the target
result that there is no publication bias; and 3) Visual
Effect size figure shows a significant target yield and no
bias. If the article found does not provide a 2x2 table in-
formation, then to calculate the meta-analysis it is neces-
sary to transform the OR value into the Pearson Product
Moment Value through Cohen's d Calculation.21
Results
Figure 1 shows the process of identification of eligible
articles for a meta-analysis of the association between
junk food consumption and symptoms of mental health
problems. A review of the database online journals found
1,889 articles that were necessarily removed due to du-
plication. On the o ther hand, 2,209 articles were exclud-
ed because 611 articles did not discuss junk food, 94 ar-
ticles did not use humans subjects, 141 and 987 articles
were comment and review articles, respectively, and 376
articles used a qualitative design. During the full-text ar-
ticle review, 82 articles were excluded for not reporting
the association test. Upon completion, seven eligible ar-
ticles relevant to the study remained.
Table 1 shows the resulting characteristics of the eli-
gible article for the systematic review. Most of the studies
were carried out in developed countries such as the
Kesmas: Jurnal Kesehatan Masyarakat Nasional (National Public Health Journal). 2021; 16 (1): 1-8
3
United Kingdom,19,22 and Norway,23 from continental
Europe, Korea,24 and China,25 from Asia. All studies
used a cross-sectional design. One article from the publi-
cation year fell within the inclusion time frame of this
study. The study used data from 2006 and 2009.22 All
articles used large sample sizes. The least was 334 re-
spondents,26 and the most were 105,061 respondents.27
The age groups of respondents varied from children to
15–19 year-old,15 adolescents,24 and all age ranges. The
lowest age group was 12 years.22,23 The oldest was 58
years.26
Table 2 shows, in the eligible articles, that the various
types of junk food were salty and unhealthy snacks,15,19
cakes, biscuits, sugary products, sweetened food, and piz-
za.27 All studies mentioned that daily junk food con-
sumption is associated with developing symptoms of
mental health problems. The other frequent categories
were “high frequency”,24 and “always consuming” junk
food.22 In general, mental health problems were com-
prised of poor mental health,22 and mental health ill-
ness.15,22–25,27 They also included psychiatric disor-
ders,15,23 sleep dissatis fact ion,24 stress,25 and suicide at-
tempts.27
The proportions of respondents suffering from mental
health problems ranged from 1.38%,24 to 79.8%.27
Covariates of the study were sociodemographic condi-
tions (age, gender, level of education, hostile behaviors
such as smoking,15,18,19,22 alcohol use,19,24 and body
mass index (BMI).15,18,22 The control variables to reduce
the adverse mental health effects were routine fruit and
vegetable,27 consumption and physical activity.22,27
All of the articles produced OR ranged from 1.31 to
1.9.25,27 Nor did all of the articles present the total cases
of respondents with mental health problems,19,26 as pre-
sented in Table 2. Because there is no 2x2 table informa-
tion in Table 2, the OR value of the seven selected articles
must be transformed into a Pearson Product moment va -
lue that shown in Figure 2.
The meta-analysis based on R Studio Software, the
random effect model's heterogeneity analysis results
show that the estimated amount of total heterogeneity
using the tau-squared test was equal to 0.0008 and Q-
statistic with a p-value equal to 0.0001. Furthermore, the
calculation of the I-squared result was 93.91%. The three
Table 1. Eligible Articles Characteristic
Author Year Country Study Study Design Study Period Sample Size Respondents Age (Mean in Years)
Zahedi, et al.,15 2014 Iran Cross-sectional 2011–2012 13,486 Children 15–19
Zahra, et al.,22 2014 United Kingdom Cross-sectional 2006 and 2009 10,645 Participants 12–14
Oelingrath, et al.,23 2014 Norway Cross-sectional 2010 789 Participants 12–13
Park, et al.,24 2016 Korea Cross-sectional 2015 68,043 Adolescents 15.07
Xu H, et al.,25 2020 Chinese Cross-sectional 2017– 2018 14,500 Middle schools 14.9
Jacob, et al.,27 2020 32 Countries Cross-sectional 2009–2015 105,061 Adolescents 13–15
Chaplin, et al.,19 2011 United Kingdom Cross-sectional 2011 870 Participants 45
Figure 1. Flowchart of PRISMA Guideline Figure 2. Forest Plot between Junk Food Consumption and the Symptoms of
Mental Health Problems
Hafizurrachman et al, Junk Food Consumption and Symptoms of Mental Health Problems
4
tests above resulted in different statuses of heterogeneity.
Two tests said the study had heterogeneity (Q-statistic
and I-squared), one study said no heterogeneity (tau-
squared). It was caused by a range of sample sizes among
the selected articles.
Figure 2 shows the magnitude of association mea -
sured by the correlation coefficient showed a small asso-
ciation between junk food consumption and the symp-
toms of mental health problems (0.11 with 95% CI =
0.09–0.14).
In Figure 3, the results of publication bias analysis us-
ing a Funnel Plot showed asymmetric results since the
distribution of dots has no balance. There is another test,
Egger’s regression test, which aims to compare the
Funnel Plot result. The results of Egger’s regression test
analysis showed a value of 0.602 or a p-value of more
than 0.05, which indicates that there is no publication
bias.
Discussion
The results of the meta-analysis of this study indicate
a significant positive association between the frequency
of junk food consumption and symptoms of mental
health problems (0.11 with 95% CI = 0.09–0.14).
Several previous systematic review articles between nu-
trient food and mental illness suggest that it is better to
reduce the consumption of high fat and high sugar foods
to prevent mental illness symptoms.16 Polat, et al.,28 re-
vealed that frequent junk food consumption leads to an
increase in testosterone and estrogen production, which
might cause specific problems, including stress triggers.
Palacios, et al.,29 added that junk food substances from
nuts trigger phytoestrogens' development, which can
Table 2. Type of Junk Food and Mental Health Problems in the Eligible Article
Author Type of Junk Food Consumption Case of Mental Problem n % Covariate OR
Frequency
Zahedi, et al.,15 Salty Snacks, Sweets, Daily Psychiatric distress (worry, 5,352 39.86 Family size, father’s occupation, mother’s occu- 1.37
Sweetened Beverage, depression, confusion, in- pation, father’s education, mother’s education,
Fast Food somnia, anxiety, aggression, sedentary lifestyle, screen time, physical activity,
and feelings of worthless- socio-economic status, family history, body mass
ness) and violent behaviors index (BMI), body image, passive smoking,
(physical fighting, victim- current smoking.
izing, and bullying)
Zahra, et al.,22 Hamburger, chips, Always Poor mental health 1,836 17.24 Eat at irregular times, eat junk food daily, gender, 1.59
crisps, fizzy drinks, age, ethnicity, overcrowded, free school meal,
sweets special educational needs, smoking, parenting
style, poor physical health.
Oelingrath, Junk foods Daily Psychiatric disoders 72 9.1 Child’s BMI category, maternal education, family 1.6
et al.,23 income, family structure, child’s gender, child’s
gender, child’s physical activity, inactivity of child.
Park, et al.,24 Energy drinks and High Sleep dissactifaction, perceiv- 945 1.38 Males, high school, rural residence, non-residence 1.65
junk food frequency ed stress, persistent depress- with family, high academic achievement, lifetime
ive mood, suicidal ideation, alcohol use, physically active, age.
suicide plan, suicide attempt(s)
Xu H, et al.,25 Western junk food, During last Severe stress, depressive mood, 432 3.1 Age, gender, residence, boarding school, being 1.9
Chinese junk food, week, 1-2 suicidal ideation, suicide plans, the only child in the family, father’s education
takeaway junk food, times suicide attempts, and sleep level, mother’s education level, the number of
hot food packed in dissatisfaction close friends, sports, and self-perceived socio-
disposable fastfood box economic status.
Jacob, et al.,27 Adherence to Western Daily Suicide attempts NA 26.7- Sex, age, food insecurity (a proxy of socioecono- 1.31
dietary patterns 79.8 mic status), alcohol consumption, smoking, phy-
(snacks, pizza, sweets, sical activity, obesity, carbonated soft drink con-
and desserts) sumption, fruit, and vegetable consumption.
Chaplin, Unhealthy snacks More than Life stress NA NA Alcohol consumption, smoking, difficulty sleeping, 1.59
et al.,19 three times (Only showed gender, age, neuroticism, total negative job score.
a week the association)
Note: OR = Odds Ratio; NA = Not Available
Figure 3. Funnel Plot of Junk Food Consumption and the Symptoms of
Mental Health Problems
Kesmas: Jurnal Kesehatan Masyarakat Nasional (National Public Health Journal). 2021; 16 (1): 1-8
5
cause stress. This condition will increase with high caloric
content, high salt, high saturated fat, high sugar, and low
fiber in junk food.30 Perfluoroalkyl substances (PFASs)
found in foods such as hamburgers, sausages, and pizza
can interfere with the function of testosterone and other
steroid hormones.31 This condition is worrying because
the quick reaction to these substances can cause in-
creased risks of anemia, anxiety, and insomnia as triggers
for mental health problems.32 These quick reaction
symptoms were clearly shown in the selected articles,
which use the cross-sectional design in this study. It is
differs from the effects of non-communicable diseases
such as heart disease, diabetes, stroke, and cancer, which
take a long time to manifest after junk food consump-
tion.33,34 The reaction will stimulate a higher impact if
junk food is consumed in large quantities, exceeding the
standard daily dose of health, and consumed frequently.
Although it proved a significant positive association,
the results of this study's meta-analysis showed that dif-
ferences are resulting in the heterogeneity of the associa-
tion between junk food consumption and the symptoms
of mental health problems. Heterogeneity might occur
due to the various outcomes and sample sizes of mental
health problems, including mental disorders, psychiatric
disorders, sleep dissatisfaction, stress, autistic fantasy,
and suicide attempts.15,20,22–27 However, based on the
tau-squared test, the heterogeneity has no occurred that
one of the requirements for further analysis in this study.
A meta-analysis study meets high qualifications if the cal-
culation results do not have heterogeneity of measure-
ment values.
Another prerequisite for better meta-analysis is that
there be no publication bias in any of the measurement
tests. In this study, publication bias was calculated by
two measurements–the Funnel Plot and the Egger’s re-
gression test. Both measurements yielded different re-
sults. The Funnel Plot showed a publication bias, while
the Egger’s regression test showed none. Since this study
included only seven articles, the Egger’s regression test
proved more robust or suitable.35 It can be said that there
was no publication bias for this study.
Under real conditions, various types of mental disor-
ders might cause heterogeneity of the result.36 These re-
sults provide strong evidence for a connection between
junk food consumption and the occurrence of problem-
atic mental health issues.
The systematic review showed that children are sus-
ceptible to symptoms of mental health problems,23,25
such as depression, anxiety, and low self-esteem due to
anatomical and physiological conditions.37,38 Moreover,
junk food such as chips and fries, chocolate, cookies, piz-
za, and burgers are more consumed by children than
adults.39 Junk food, especially the type that contains ex-
cessive sweet or salty taste, can inhibit information pro-
cessing in the brain. Therefore, children and adolescent
who consumes a lot of junk food usually have concentra-
tion difficulties at school.40 Junk food also exacerbates
existing mental disorders. In Indonesia, schools provide
Unit Kesehatan Sekolah or School Health Unit to pre-
vent mental illness in children. However, it is still a pilot
project, and controlling junk food has not been deter-
mined as the program's aim.41 In India, there is a High
in Fat, Sugar, and Salt (HFSS) guideline, regulating chil-
dren’s excessive consumption of junk food because of its
association with higher body mass index. However, these
guidelines do not address the risks of developing mental
illness.42
Based on the discussion above, the association be-
tween junk food and mental health problems is sufficient-
ly acute. Even minimal but frequent consumption of junk
food could contribute to aggravated mental health symp-
toms. A regular public education awareness campaign to
prevent mental illness through improvements to diet and
lifestyle is warranted. The community must be aware of
policy makers' issues through guidelines, rules, and pub-
licity campaigns. The community needs to ramp up
awareness of junk food consumption risks, mainly to pre-
vent long-lasting mental health problems for children.
The findings from several eligible articles showed that
negative behaviors, such as smoking, and drinking were
significant determinants of poor mental health condi-
tions.19,26,27 These findings were consistent with the oth-
er studies.43 Both sugar and fat nutrients and nicotine
exposure may activate stressors in the body.44 Further
study is required to support this finding.
Body mass index is also considered a covariate in se -
veral eligible studies.15,18,23 Obesity affects stress be-
cause it strains emotional function, causes depression,
and delays the development of teeth, bones, and mus-
cles.45 Therefore, maintaining an ideal BMI, smoking,
and alcohol cessation are also necessary to prevent the
aggravation of mental illness symptoms.
Food is not the only risk factor for poor mental con-
ditions. It can be seen from the covariate variations that
affect the associations between junk food consumption
and the incidence of mental illness in all eligible studies
for meta-analysis in this study. However, the potential
for mental illness from junk food consumption has not
received much awareness from public health personnel
and medical personnel.46 The efforts of mental illness
prevention implemented by health personnel have includ-
ed junk food consumption control.47 Some nutritionists
have implemented campaigns against junk food con-
sumption in patients because of the risk of mental illness,
but it has not been implemented by other health person-
nel.48 For example, nurses in primary health care have
not actively advertised the importance of controlling junk
food consumption to prevent stress symptoms in their
Hafizurrachman et al, Junk Food Consumption and Symptoms of Mental Health Problems
6
patients.49 Treatment of mental illness in health services
should include encouraging the consumption of vegeta-
bles and fruit instead of junk food. Public health person-
nel as the front liners in preventing mental illness should
campaign on junk food consumption restriction.
The existing health policy has linked the consumption
of junk food with malnutrition. However, it has not em-
phasized the potential risks of developing mental ill-
ness.50–52 Developing and developed countries such as
the United States, France, Mexico, Chile, Brazil, and
South Africa have imposed taxes on food and sweetened
drinks to limit the consumption of foods that pose a
health risk.53–55 Other countries might need to imple-
ment a similar policy.
Regular consumption of fruits and vegetables, instead
of junk food, can prevent mental illness. Fruits and ve -
getables provide a wide variety of vitamins, minerals,
fiber, and phytochemicals that the body needs to keep
healthy, while junk food provides abundant calories that
harm health.56,57 Promoting regular consumption of fruit
and vegetable have been routinely encouraged by health
personnel to patients and the community. However, pol-
icy needs to be developed especially for children, to reg-
ularly eat fruits and vegetables to avoid various mental
health problems.58–60
This study's novelty is that it is the first meta-analysis
conducted to determine the positive relation between
junk food consumption and the symptoms of mental
health problems by using two well-known health data-
bases. The existing meta-analysis research method ap-
proaches the subject from a less comprehensive point of
view. This approach is to the importance of healthy food
intake to improve the symptoms of mental health prob-
lems.16 Simply the result of this first meta-analysis will
allow future researchers around the world to examine the
different effects of junk food consumption and the symp-
toms of mental problems by using observatory data from
their own countries. Using combination of two databases
that are sufficiently strong for SLR study such as journal
searches becomes less time-consuming and efficient. It
obtains high index articles without having to identify oth-
er well-known databases. These two databases have ad-
vanced the search, facilitating the specific journal search
process.
Limitations of this study only used five categories of
mental health problems and did not include other symp-
toms such as schizophrenia. Meanwhile, junk food cate-
gories did not measure fried foods (gorengan) that con-
tain unhealthy carbohydrates and fats and are widely con-
sumed by society. The source of the meta-analysis comes
from just two databases. It might still be possible to find
a stronger association between exposure and outcome.
Therefore, other researchers could investigate more var-
ied types of junk food and mental health problems for
the next SLR research and use more databases and web-
site resources.
Conclusion
This systematic review and meta-analysis study
demonstrated a significant positive association between
frequent junk food consumption and the potential for
symptoms of mental health problems. These problems
can be suffered by all age categories, including children
and adolescence. On the other hand, routine junk food
consumption coupled with negative behaviors such as
smoking and drinking alcohol, and being overweight or
obese, contribute to the growth of mental health prob-
lems. Therefore, society and policymakers together must
be made aware of the outcomes of this study and the
need to develop junk food consumption controls, espe-
cially for children, to raise public health awareness to-
ward the negative outcome of mental health problems.
Abbreviations
PRISMA: Preferred Reporting Items for Systematic Reviews and Meta-
Analysis; SLR: Systematic Literature Review; PROSPERO:
International Prospective Register of Systematic Reviews; BMI: Body
Mass Index; CI: Confident Interval; NA: Not Available; OR: Odds
Ratio; PFASs: Perfluoroalkyl Subtances; HFSS: High in Fat, Sugar, and
Salt.
Ethics Approval and Consent to Participate
The analysis used an online database journal from PubMed and
ScienceDirect. Ethics approval was obtained by the Ethics Committee
of Sekolah Tinggi Ilmu Kesehatan Indonesia Maju, reference number:
2417/Sket/Ka-Dept/RE/STIKIM/IX/2020.
Competing Interest
The author declares that there are no significant competing financial,
professional, or personal interests that might have affected the per-
formance or presentation of the work described in this manuscript.
Availability of Data and Materials
The data is publicly available from Pubmed and Science Direct from
October 2010 to October 2020. The data of this study can be obtained
from seven eligible articles that have been included in references. Also,
the reader may contact the corresponding author for further informa-
tion.
Authors’ Contribution
MH contributed to the conception, data screening, supervising, and
writing of the manuscript. RKH participated in the conception and
writing of the manuscript.
Acknowledgment
The author would like to extend special gratitude to Gunanti
Khairunnisa, Putri Candaika, and Margaretha Josephine Mantrono,
supporting and collecting the data. Adi Wijaya contributed to the data
Kesmas: Jurnal Kesehatan Masyarakat Nasional (National Public Health Journal). 2021; 16 (1): 1-8
7
analysis.
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... Regular consumption of fast food and junk food may cause nutritional deficiency as well as cognitive and aberrant behaviour development [84]. Even with small effects, continuous use of junk food might increase the symptoms of mental disease [75]. Adolescents consuming high-fat diets, including junk food, may experience cerebral dysfunction, and whether any changes to brain function are irreversible or permanent. ...
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Introduction: Nutrition is one of the critical factors that influence brain development, and has a significant impact on the brain’s developmental processes and functioning from foetal to adult age. Newborn human brains utilise 60% of the body’s total oxygen, which has an impact on calorie intake. For the anatomical and functional growth of the brain, all nutrients are essential, the ones that aid in energy, carbohydrate, protein, and fat metabolism are especially significant. Objectives: The aim of this review is to boost up memory through diet, to know about the Nutrients for the development of the brain and to ensure Foods that adversely affect normal brain function. Methodology: This literature review consulted multiple databases, focusing on brain health and development, cognitive function, and maternal diet. The review included research from previous decades and analysed around 1,000 articles, with nearly 185 selected. The review assessed the relevance of the content to search terms, evaluating resources based on material quality, topicality, and publication year. The review discussed macronutrients and micronutrients, healthy and unhealthy foods, and maternal diets for foetal brain development. Conclusion: Factors such as maternal diet and macro and micronutrient consumption significantly impact brain development and cognitive function. Nutrition is crucial for optimal brain health and preventing cognitive decline. Deficiencies and excesses of certain nutrients affect cognitive function differently. Vitamin A, LC-PUFAs, ketones, protein, zinc, neurotrophins, neuropeptides, choline deficiency, vitamin B, copper, lutein, and zeaxanthin are essential for brain health. Consuming foods like walnuts, dairy, fish, caffeine, and low glycemic index foods can be beneficial for brain health, while junk foods, refined sugar, and saturated fats can be harmful.
... Concerns have been raised regarding the detrimental consequences of a diet high in junk foods, such as metabolic disorders, obesity, and cardiovascular diseases in children [28,29]. Additionally, excessive consumption of junk food adversely affects children's and adolescents' mental health [30]. Research on the impact of sugar intake and sugar-sweetened beverages on behavioral problems has increased interest in recent years. ...
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The adverse effects of junk foods on the risk of attention deficit hyperactivity disorder (ADHD) symptoms were reported in several studies. In this meta-analysis, the association between junk food consumption and the risk of ADHD was investigated in children and adolescents. A comprehensive systematic search was conducted to find all relevant literature via four databases, including PubMed, Web of Science, Scopus, and Google scholar, up to September 2022. Two independent authors screened all documents based on inclusion criteria. The overall effect sizes and related 95% confidence interval (CI) were pooled with the random effect approach. Subgroup analysis was done to measure potential sources of heterogeneity between studies. The quality of the included studies was evaluated with The Newcastle–Ottawa scale (NOS). Nine observational studies with 58,296 children /adolescents were eligible to be include in the meta-analysis. According to the random effect model, there was a positive relation between the consumption of junk foods and ADHD symptoms (odds ratio (OR): 1.24, 95%CI 1.15–1.34, P < 0.001, I²: 37.4%, P = 0.085). A similar significant positive association was shown in the subgroups analysis by different junk foods (sweetened beverages/soft drinks, sweets/candies, and other types of junk foods). This meta-analysis finding demonstrated that consuming junk foods, especially sweetened beverages/soft drinks, and sweets/candies is associated with ADHD symptoms.
... Meta-analysis of prospective studies showed that increased risk of subsequent depression and adverse mental health outcomes were correlated with higher ultra-processed food intake [20]. According to meta analysis incorporating seven studies, junk food consumption increased the risk of experiencing mental illness symptoms [21]. For example, one study reporting outcomes for 1591 adults, demonstrated that high consumption of fast foods and processed foods was associated with anxiety, nervousness, restlessness, lack of motivation and depressive symptoms [22]. ...
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Background Anxiety and depression can seriously undermine mental health and quality of life globally. The consumption of junk foods, including ultra-processed foods, fast foods, unhealthy snacks, and sugar-sweetened beverages, has been linked to mental health. The aim of this study is to use the published literature to evaluate how junk food consumption may be associated with mental health disorders in adults. Methods A systematic search was conducted up to July 2023 across international databases including PubMed/Medline, ISI Web of Science, Scopus, Cochrane, Google Scholar, and EMBASE. Data extraction and quality assessment were performed by two independent reviewers. Heterogeneity across studies was assessed using the I² statistic and chi-square-based Q-test. A random/fixed effect meta-analysis was conducted to pool odds ratios (ORs) and hazard ratios (HRs). Results Of the 1745 retrieved articles, 17 studies with 159,885 participants were suitable for inclusion in the systematic review and meta-analysis (seven longitudinal, nine cross-sectional and one case-control studies). Quantitative synthesis based on cross-sectional studies showed that junk food consumption increases the odds of having stress and depression (OR = 1.15, 95% CI: 1.06 to 1.23). Moreover, pooling results of cohort studies showed that junk food consumption is associated with a 16% increment in the odds of developing mental health problems (OR = 1.16, 95% CI: 1.07 to 1.24). Conclusion Meta-analysis revealed that consumption of junk foods was associated with an increased hazard of developing depression. Increased consumption of junk food has heightened the odds of depression and psychological stress being experienced in adult populations.
... 4 However, routine consumption has been known to cause increased mental health concerns like sleep fluctuations, anxiety, sad mood, distress, impulsivity. 5 With the Indian market becoming liberal in its food regulatory policies over time, there has been a massive influx of a variety of food and beverages, which given their constituent ingredients come under the umbrella of junk food and are easily accessible to children. A Delhi-based organisation tested the nutritional content of 33 popular Indian junk foods, including chips, namkeen, instant noodles, instant soup, burgers, fries, fried chicken, pizza, sandwiches, wraps. ...
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Introduction: Junk food is increasingly becoming a part of the regular diet for most adolescents in India. Rich in fat and salt content, such food is known to cause nutritional, affective, behavioural, cognitive alterations. The present cross-sectional study thus aimed to understand the patterns of junk food consumption in school-going adolescents in India. Method: A semi-structured, self-administered, pre-tested questionnaire, created by AACCI, was administered in a public co-ed school in central Delhi. The survey consisted of questions on knowledge and choice of junk food and healthy habits. The sample consisted of 140 participants, who were 10th and 11th graders. Results: The foremost reason for choosing junk food was its taste in 78.8% of boys and in 72.3% of girls. There was no significant difference in the frequency of junk food consumption between girls and boys, however, their choices of food differed. Girls reported consuming more sweets (p = 0.034), while boys consumed more high-salt foods (p = 0.031) per week. Of the total boys (54%) and girls (46%), only 35% had a normal BMI. Conclusion: The consumption of junk food by school-going adolescents was high. The study highlights the need for nutritional education and regulatory mechanisms to help students monitor their junk food consumption and the importance of promoting healthy food alternatives, health care habits in this population.
... They include sugar-sweetened beverages, sweet and salty snacks, processed meat, and sweet breakfast cereals. UPPs have been associated with a large spectrum of preventable communicable diseases [4]. The high level of UPP consumption is the result of political and economic processes related to liberalism, free trade agreements [5], and tourism development [6] that shaped the obesogenic environment [7] under which UPP intake is encouraged through powerful marketing strategies aimed at positioning these products as widely available and desirable [8]. ...
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A massive incorporation of ultra-processed products into young children’s diets worldwide and in Mexico has been documented. The aim of this study is to understand the role of sociocultural factors in principal caregivers’ decisions to give a type of ultra-processed food to children under age five, called ‘comida chatarra’ (‘junk food’ in English), usually includes sugar-sweetened beverages, sweet and salty snacks, and sweet breakfast cereals. We conducted a descriptive, observational qualitative study. The research was conducted in urban and rural communities in two Mexican states. Twenty-four principal caregivers were equally distributed between the two states and types of communities. They were interviewed in person. Phenomenology underpinned this study. Results highlight the preponderant role of culture in food choices and feeding practices with junk food. Local culture influences child-feeding with ultra-processed products through social norms, knowledge, or socially constructed attitudes. These social norms, built in the context of abundant ultra-processed products and omnipresent marketing, ‘justify’ children’s consumption of junk food. They acquire these products from the principal caregivers, family members, and neighbors, among others, who reward and pamper them. These actors also define what amount (small amounts) and when (after meals as snacks) children are given these products. Cultural factors must be considered in the development of effective public policies and programs that aim to change the culture around ultra-processed products among children and avoid their consumption.
... It is indicated that for improvement of mental health it is necessary to reduce the consumption of sugar and fatty foods. Fast food not only negatively affects mental health, but also impairs sleep quality (Hafizurrachman & Hartono, 2021;Kang, Kim, & Sunwoo, 2020). We did not determine a connection between the consumption of fast food and symptoms of depression. ...
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Background. Nationwide lockdowns, encompassing mass quarantine under stay-at-home ordinances, have already proven effective in controlling the COVID-19 outbreak. A prolonged homestay may also be associated with potential side effects, which may jeopardize people’s health. Some undesirable consequences of prolonged homestay can be physical inactivity, behavioral addiction disorders and social isolation (Henry, Bovo, & Sanchis-Gomar, 2020). The aim of the study is to analyse the impact of COVID-19 on mental health and lifestyle in the population of Kaunas city. Methods of research. anonymous online survey, which included questions on demographics, eating habits, alcohol and tobacco consumption, physical activity (Global Physical Activity Questionnaire), sleep quality (Pittsburgh sleep quality index) and mental health (Patient Health Questionnaire – 9). Results. the study involved 388 respondents from Kaunas city. Women accounted for 80,7 %, and men for 19,3 % of respondents. Average of sedentary behavior during the pandemic – 430, 93 ± 233,47 min., before the pandemic – 324, 42 ± 216,21 min. (p <0,05). Average of moderate-intensity physical activity (PA) before the pandemic 122,40 ± 148,98 min., and during the pandemic – 85,33 ± 98,08 min. (p<0,05). Average of vigorous-intensity PA during the pandemic – 21,20 ± 34,13 min, and before – 47,13 ± 104,08 (p<0,05). The consumption of fast food on daily basis before the pandemic – 0,8 %, during the pandemic – 1,5 % (p<0,05). Before the pandemic 15,7 % of respondents overate, during the pandemic – 30,2 % of respondents (p<0,05). Before the pandemic 1,8% of respondents consumed alcohol every day, during the pandemic – 3,4 % of respondents (p<0,05). Symptoms of depression: 7,26 ± 1,46 points before the pandemic and 10,40 ± 2,20 points during the pandemic (p<0,05). Quality of sleep: 5,73 ± 2,20 points before the pandemic and 6,44 ± 2,99 during the pandemic (p<0,05). Conclusion. Sedentary behavior increased, while moderate-intensity and vigorous-intensity PA decreased (p<0,05) during the pandemic. The consumption of fruit and fast food increased during the pandemic (p<0,05) as well as the daily consumption of alcohol (p<0,05). The symptoms of depression were evaluated as mild (5–9 points) before the pandemic, and as moderate (10-14 points) during the pandemic (p<0,05). The quality of sleep was evaluated as worse during the pandemic than before the pandemic (p<0,05). Keywords: COVID-19, lifestyle, mental health, population of Kaunas city.
... The results of the report are no less surprising that there are still many university students who often eat fast food. Hafizurrachman [11] said that many studies mention the relationship between junk food or fast food and mental health problems is quite acute. Even small but frequent consumption of fast food or junk food can contribute to aggravated mental health symptoms. ...
Article
Objective This study aims to investigate the factors that promote or hinder the feeding of children with minimal or no ultra‐processed products to inform the design of an mHealth strategy in Mexico and prevent child malnutrition among the economically vulnerable. Methods An exploratory qualitative study was conducted, involving 24 in‐depth face‐to‐face interviews with caregivers of children aged 24–59 months from both urban and rural communities. To analyze the data, we used thematic analysis and incorporated a few elements of grounded theory. Results More barriers than facilitators were identified. Key barriers included: misconceptions and the widespread availability of junk food through an extensive network of grocery stores; neighbors and family gifting junk food; the association of soda with celebrations; the practice of indulging children with junk food; and the normalization of junk food consumption by both adults and children. Facilitators included: caregivers’ awareness of the health risks associated with junk food; economic constraints limiting junk food purchases; support from husbands in regulating children's junk food consumption; the presence of a family member with diabetes; specific cultural beliefs about children's digestive health; as well as displacement of “healthy” foods that nourish children. Conclusion Based on our findings, we formulated recommendations for interventions at intrapersonal, interpersonal, organizational, community, and public policy levels to support healthier feeding practices for children.
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Digital media is the extensive platform in the lives of adolescents. Where they can easily share and upload some content based on communication. As the particular view of promotion through media are commonly used by our younger generation that is wide open towards the unhealthy food and beverages which is evidently influencing the adolescents to adopt unfavourable eating habits. Obesity, hypertension, overweight and other health issues are the following issues exposed in maximum number. The results originally suggested such unhealthy marketing are a significant effect of influencer and celebrity endorsement as well as over screen time, advergaming and overly access the content of non-core foods images or videos. This study provides exact assumption of adolescent's behaviour in the eating of healthy and unhealthy foods in distinguishing between the online result and family instructions. These reviews are combined with other following examples in order to not create unfairness in the following paper process and also to provide some of the effective measures targeting the screen-based marketing as well as the health of young people.
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Background: Available evidence indicates that junk foods, defined as unhealthy foods with high-calorie and low-nutrient value, negatively affect mental and metabolic health of children. This study aimed to conduct a meta-analysis to clarify the association between junk food consumption and psychological distress in children and adolescents. Methods: A systematic literature search of relevant documents published in PubMed, Web of Science, and SCOPUS was conducted up to 2022. All observation studies which assessed association of junk foods and psychological distress in children and adolescents were included. Random-effect model was used to pool odds ratio (OR) and 95% confidence interval (CI) from individual studies. Subgroup meta-analysis was performed based on junk foods categories (sweet drinks, sweet snacks and snacks). Results: Data of 17 included articles on junk foods consumption in relation to depression, stress, anxiety, sleep dissatisfaction and happiness in children and adolescents were included in this systematic review. According to random effect model, the pooled OR in the highest vs. the lowest category of junk foods was 1.62 (95% CI: 1.35-1.95) for depression, 1.34 (95% CI: 1.16-1.54) for stress, 1.24 (95% CI: 1.03-1.50) for anxiety, 1.17 (95% CI: 1.05-1.30) for sleep dissatisfaction and 0.83 (95% CI: 0.75-0.92) for happiness. In subgroup meta-analysis, there were significant associations between different types of junk foods and psychological distress (P < 0.05). Conclusion: This meta-analysis showed that junk foods consumption was associated with increased odds of psychological distress in children and adolescents. These findings support the current recommendation of decreasing junk foods intake.
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The demand for convenience and the increasing role of digital technology in everyday life has fueled the use of online food delivery services (OFD's), of which young people are the largest users globally. OFD's are disrupting traditional food environments, yet research evaluating the public health implications of such services is lacking. We evaluated the characteristics and nutritional quality of popular food outlets on a market-leading platform (UberEATS ®) in a cross-sectional observational study conducted in two international cities: Sydney (Australia) and Auckland (New Zealand). A systematic search using publicly available population-level data was used to identify geographical areas with above-average concentrations (>30%) of young people (15-34-years). A standardized data extraction protocol was used to identify the ten most popular food outlets within each area. The nutritional quality of food outlets was assessed using the Food Environment Score (FES) (range: −10 'unhealthiest' to 10 'healthiest'). Additionally, the most popular menu items from each food outlet were classified as discretionary or core foods/beverages according to the Australian Dietary Guidelines. The majority of popular food outlets were classified as 'unhealthy' (FES range −10 to −5; 73.5%, 789/1074) and were predominately takeaway franchise stores (59.6%, 470/789, e.g., McDonald's ®). 85.9% of all popular menu items were discretionary (n = 4958/5769). This study highlights the pervasion and accessibility of discretionary foods on OFD's. This study demonstrated that the most popular food outlets on the market-leading online food delivery service are unhealthy and popular menu items are mostly discretionary foods; facilitating the purchase of foods of poor nutritional quality. Consideration of OFD's in public health nutrition strategies and policies in critical.
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Consumption of junk food among adolescents has been recognized as a serious health problem in the world. Therefore, this study aims to assess the effectiveness of an educational intervention program (interactive lecture) based on the theory of planned behavior (TPB) for reducing junk food consumption among school adolescents in Birgunj Metropolitan City, Nepal. A structured questionnaire was deployed for collecting the data from four government schools. Pretest and Posttest group study design and simple random sampling techniques were used. A multiple linear regression model and a paired t-test were used to assess the effectiveness of an educational intervention program. The theory of planned behavior indicates that behavioral intention of junk food consumption was different in pretest and posttest [5.43 ± 1.3 and 7.96 ± 0.3]. Furthermore, the average score of attitude toward junk food consumption was 11.9 ± 1.5 and 16.3 ± 1.6. Meanwhile, perceived behavior control (PBC) toward junk food was also different after intervention [2.42 ± 0.50 and 3.13 ± 0.58]. The interactive lecture method was proved an effective education program for changing the intentions of adolescent students and preventing them from consuming junk food which were statistically significant (
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Background: Mental illness is one of the fastest rising threats to public health, of which depression and anxiety disorders are increasing the most. Research shows that diet is associated with depressive symptoms or depression (depression). Aim: This study aimed to investigate the diets impact on depression, by reviewing the scientific evidence for prevention and treatment interventions. Method: A systematic review was conducted, and narrative synthesis analysis was performed. Result: Twenty scientific articles were included in this review. The result showed that high adherence to dietary recommendations; avoiding processed foods; intake of anti-inflammatory diet; magnesium and folic acid; various fatty acids; and fish consumption had a depression. Public health professionals that work to support and motivate healthy eating habits may help prevent and treat depression based on the evidence presented in the results of this study. Further research is needed to strengthen a causal relationship and define evidence-based strategies to implement in prevention and treatment by public healthcare.
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Background We examined the fast food consumption-suicide attempt relationship among 105,061 adolescents aged 12-15 years from 32 countries. Methods This study was based on cross-sectional data from the Global School-based Student Health Survey (GSHS), and included 4 low-income, 13 lower middle-income, 9 upper middle-income, and 6 high-income countries. Data on past 7-day fast food consumption and 12-month suicide attempts were collected. The association between fast food consumption and suicide attempts was investigated with multivariable logistic regression and meta-analysis while adjusting for sex, age, food insecurity (proxy of socioeconomic status), alcohol consumption, smoking, physical activity, obesity, carbonated soft drink consumption, and fruit and vegetable consumption. Results Overall, the prevalence of fast food consumption was high (53.5%) and the proportion of suicide attempts was higher among consumers of fast food compared to non-consumers (11.8% vs. 8.3%). Of the 32 countries included in the study, a positive association between fast food consumption and suicide attempts was found in 26 countries although this was not statistically significant in all countries. The pooled OR (95% CI) based on a meta-analysis was 1.31 (1.17-1.46). Limitations Since this was a cross-sectional study, it is not possible to draw any conclusions about causality or temporality in the associations assessed. Conclusions Fast food consumption is positively associated with suicide attempts in adolescents. Further research of longitudinal design is needed to confirm/refute our findings and explore the potential underlying mechanisms.
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Background: The negative psychological impact of living in a setting of protracted conflict has been well studied, however there is a recognized need to understand the role that non-conflict related factors have on mediating exposure to trauma and signs of psychological distress. Methods: We used data from the 2015 Kashmir Mental Health Survey and conducted mediation analysis to assess the extent to which daily stressors mediated the effect of traumatic experiences on poor mental health outcomes. Outcomes of interest were probable diagnosis of anxiety, depression, or PTSD; measured using the pre-validated Hopkins Symptoms Checklist (HSCL-25) and the Harvard Trauma Questionnaire (HTQ). Results: Total effect mediated were statistically significant but the proportions of effect mediated were found to be small in practical terms. Financial stress mediated 6.8% [95% Confidence Interval (CI) 6∙0-8∙4], 6.7% [CI 6.2-7∙7] and 3.6% [CI 3∙4-4∙0] of the effect of experiencing multiple traumaticogenic events on symptoms of anxiety, depression and PTSD, respectively. Family stress mediated 11.3% [CI 10.3-13.8], 10.3% [CI 9.5-11.9] and 6.1% [CI 5.7-6.7] of the effect of experiencing multiple traumatogenic events on symptoms of anxiety, depression and PTSD, respectively. Poor physical health mediated 10.0% [CI 9.1-12∙0], 7.2% [CI 6.6-8.2] and 4.0% [CI 3.8,4.4] of the effect of experiencing more than seven traumatic events on symptoms of anxiety, depression and PTSD, respectively. Conclusion: Our findings highlight that not only do we need to move beyond a trauma-focussed approach to addressing psychological distress in populations affected by protracted conflict but we must also move beyond focussing on daily stressors as explanatory mediators.
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Justification In view of easy availability and increasing trend of consumption of fast foods and sugar sweetened beverages (fruit juices and drinks, carbonated drinks, energy drinks) in Indian children, and their association with increasing obesity and related non-communicable diseases, there is a need to develop guidelines related to consumption of foods and drinks that have the potential to increase this problem in children and adolescents. Objectives To review the evidence and formulate consensus statements related to terminology, magnitude of problem and possible ill effects of junk foods, fast foods, sugar-sweetened beverages and carbonated drinks; and to formulate recommendations for limiting consumption of these foods and beverages in Indian children and adolescents. Process: A National Consultative group constituted by the Nutrition Chapter of the Indian Academy of Pediatrics (IAP), consisting of various stakeholders in private and public sector, reviewed the literature and existing guidelines and policy regulations. Detailed review of literature was circulated to the members, and the Group met on 11th March 2019 at New Delhi for a day-long deliberation on framing the guidelines. The consensus statements and recommendations formulated by the Group were circulated to the participants and a consensus document was finalized. Conclusions The Group suggests a new acronym ‘JUNCS’ foods, to cover a wide variety of concepts related to unhealthy foods (Junk foods, Ultra-processed foods, Nutritionally inappropriate foods, Caffeinated/colored/carbonated foods/beverages, and Sugar-sweetened beverages). The Group concludes that consumption of these foods and beverages is associated with higher free sugar and energy intake; and is associated with higher body mass index (and possibly with adverse cardiometabolic consequences) in children and adolescents. Intake of caffeinated drinks may be associated with cardiac and sleep disturbances. The Group recommends avoiding consumption of the JUNCS by all children and adolescents as far as possible and limit their consumption to not more than one serving per week. The Group recommends intake of regional and seasonal whole fruits over fruit juices in children and adolescents, and advises no fruit juices/drinks to infants and young children (age <2 y), whereas for children aged 2–5 y and >5–18 y, their intake should be limited to 125 mL/day and 250 mL/day, respectively. The Group recommends that caffeinated energy drinks should not be consumed by children and adolescents. The Group supports recommendations of ban on sale of JUNCS foods in school canteens and in near vicinity, and suggests efforts to ensure availability and affordability of healthy snacks and foods. The Group supports traffic light coding of food available in school canteens and recommends legal ban of screen/print/digital advertisements of all the JUNCS foods for channels/magazines/websites/social media catering to children and adolescents. The Group further suggests communication, marketing and policy/taxation strategies to promote consumption of healthy foods, and limit availability and consumption of the JUNCS foods.
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Background: Although fast food and sugar-sweetened beverages (SSBs) consumption have been closely linked to childhood and adolescent obesity, the data regarding their co-consumption and relationship to mental health remains controversial. Methods: A multi-centered population-based survey was conducted among Chinese adolescents from grades 7 to 12. Data about participants’ consumption of fast foods and SSBs were obtained from self-reported questionnaires. Psychological symptoms were assessed using the Multi-dimensional Sub-health Questionnaire of Adolescents (MSQA). The association between co-consumption of fast food and SSBs and psychological symptoms was assessed using quantile regression analysis, adjusting for covariates. Results: Approximately one-fifth of the 14,500 participants reported psychological symptoms. The regression coefficient (β) value increased as the quantile of fast food, SSBs, and co-consumption increased in the quantile regression model, and the model had an excellent goodness-of-fit (F = 192.51, P < 0.001). In the interaction model, fast food and SSBs in combination were associated with greater odds of psychological symptoms (aOR = 1.90, 95% CI: 1.69, 2.12). The synergy index, relative excess risk of interaction, and attributable proportions were 1.86 (95% CI: 1.17, 2.96), 0.4 (95% CI: 0.20, 0.63), and 0.22 (95% CI: 0.11, 0.33), respectively. Limitations: Information bias is inevitable in self-reported data among participants. The ability to assess causal relationships is reduced by a cross-sectional study design. Conclusions: Our findings suggest that co-consumption of fast food and SSBs was cross-sectionally associated with mental health problems among adolescents.
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Previous observational epidemiological studies have reported inconsistent findings regarding the association between anemia and the risk of maternal depression. In the present study, we investigated the relationship between anemia and the risk of maternal depression using a meta-analysis. We searched PubMed, EMBASE, and the bibliographies of relevant articles in May 2019. Three evaluators independently reviewed and selected the eligible studies based on the predetermined selection criteria. A random-effects model was employed to calculate meta-estimates of the association between anemia and maternal depression. Of the 1305 articles, 15 observational epidemiological studies (five case-control studies and 10 cohort studies) were included in the final analysis. A total of 32,792,378 women were included. Anemia was significantly associated with an increased risk of maternal depression in the random-effects meta-analysis of 15 studies (OR/RR: 1.53, 95% CI: 1.32-1.78). The association was consistent in both antepartum (OR/RR: 1.36, 95% CI: 1.07-1.72) and postpartum depression (OR/RR: 1.53, 95% CI: 1.32-1.78). Subgroup meta-analyses based on definition of anemia, definition of depression, and methodological quality reported consistent findings. The current meta-analysis showed that anemia was associated with an increased risk of maternal depression.