Effect of prebiotic supplementation and calcium intake on body mass index.
ABSTRACT To assess the effects of a prebiotic supplement and usual calcium intake on body composition changes during pubertal growth.
We measured anthropometry and body fat with dual-energy X-ray absorptiometry in 97 young adolescents who were randomized to receive either a daily prebiotic supplement or maltodextrin (control) for 1 year.
Subjects who received the prebiotic supplement had a smaller increase in body mass index (BMI) compared with the control group (BMI difference 0.52 +/- 0.16 kg/m2, P = .016), BMI Z-score (difference 0.13 +/- 0.06, P = .048) and total fat mass (difference 0.84 +/- 0.36 kg, P = .022). The prebiotic group maintained their baseline BMI Z-score (0.03 +/- 0.01, paired t test, P = .30), although BMI Z-score increased significantly in the control group (0.13 +/- 0.03, P < .001). In considering subjects whose usual calcium intake was > or = 700 mg/d, those who received the prebiotic supplement had a relative change in BMI that was 0.82 kg/m2 less than control subjects (P < .01), and BMI Z-score that was 0.20 less than control subjects (P = .003). Differences tended to be maintained 1 year after supplementation was stopped.
Prebiotic supplementation and avoidance of a low calcium intake can have significant effects in modulating BMI and other body composition changes during puberty.
- SourceAvailable from: Gustavo Duarte Pimentel[Show abstract] [Hide abstract]
ABSTRACT: Preclinical ResearchThe gut microbiota is being increasingly appreciated by both clinical and research professionals as the human ancestral genome has undergone modification by the microbes that colonize the human body. The gut is now known to be a key metabolic organ that contains some 15 000 bacterial species that influence health and chronic diseases, the latter including obesity, type 2 diabetes, hepatic steatosis, and hypertension. Based on the potentially beneficial effects of nutrients, this review discusses how obesity disturbs the gut microbiota. Additionally, the main dietary nutrients known to modulate the intestine microbiome were highlighted.Drug Development Research 09/2013; 74(6). · 0.73 Impact Factor
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ABSTRACT: Objective To investigate the effect of nutrient stimulation of gut hormones by oligofructose supplementation on appetite, energy intake (EI), body weight (BW) and adiposity in overweight and obese volunteers.Methods In a parallel, single-blind and placebo-controlled study, 22 healthy overweight and obese volunteers were randomly allocated to receive 30 g day−1 oligofructose or cellulose for 6 weeks following a 2-week run-in. Subjective appetite and side effect scores, breath hydrogen, serum short chain fatty acids (SCFAs), plasma gut hormones, glucose and insulin concentrations, EI, BW and adiposity were quantified at baseline and post-supplementation.ResultsOligofructose increased breath hydrogen (P < 0.0001), late acetate concentrations (P = 0.024), tended to increase total area under the curve (tAUC)420mins peptide YY (PYY) (P = 0.056) and reduced tAUC450mins hunger (P = 0.034) and motivation to eat (P = 0.013) when compared with cellulose. However, there was no significant difference between the groups in other parameters although within group analyses showed an increase in glucagon-like peptide 1 (GLP-1) (P = 0.006) in the cellulose group and a decrease in EI during ad libitum meal in both groups.Conclusions Oligofructose increased plasma PYY concentrations and suppressed appetite, while cellulose increased GLP-1 concentrations. EI decreased in both groups. However, these positive effects did not translate into changes in BW or adiposity.Obesity 04/2014; · 4.39 Impact Factor
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ABSTRACT: Experimental data in animals, but also observational studies in obese patients, suggest that the composition of the gut microbiota differs in obese v. lean individuals, in diabetic v. non-diabetic patients or in patients presenting other diseases associated with obesity or nutritional dysbalance, such as non-alcoholic steatohepatitis. In the present review, we will describe how changes in the gut microbiota composition and/or activity by dietary fibres with prebiotic properties, can modulate host gene expression and metabolism. We will evaluate their potential relevance in the management of obesity and related metabolic disturbances, in view of the experimental data and intervention studies published up to date.The British journal of nutrition 01/2013; 109(S2). · 3.45 Impact Factor