Sports Nutrition Advice for Adolescent Athletes: A Time to Focus on Food

Abstract

Adolescents participating in sport have high demands for nutritional adequacy to meet their needs for growth, development, wellness and athletics. Nutritional risk can be quite high in this population due to their unique needs, low access to credible information and nutrition professionals, and misinformation in the media and marketplace specifically targeting athletes. Physicians and other health professionals have an opportunity to communicate nutrition facts and make evidence-based recommendations about healthy eating in the setting of their ongoing interactions with adolescent athletes and their families. The purpose of this review is to describe the nutritional needs of adolescents participating in sport and highlight the potential for nutritional risk. Endorsed by professional organizations, our recommendations emphasize a balanced eating pattern that includes a wide variety of fresh, minimally processed whole foods. Our approach is to empower and teach adolescents to take responsibility for planning, preparing, and providing themselves consistent access to foods and fluids that deliver nutrients needed for proper fueling and recovery. Specific talking points that health professionals can use in brief interactions with patients and families are provided to endorse key behavioral strategies that young athletes can adopt to achieve peak athletic performance and optimal nutritional status.

Full text

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Nov • Dec 2015American Journal of Lifestyle Medicine
Mary Ellen Bingham, MS, RD, CSSD, Mimi E. Borkan,
and Paula A. Quatromoni, DSc, RD
Abstract: Adolescents participating
in sport have high demands for
nutritional adequacy to meet their
needs for growth, development, wellness
and athletics. Nutritional risk can
be quite high in this population due
to their unique needs, low access to
credible information and nutrition
professionals, and misinformation in
the media and marketplace specifically
targeting athletes. Physicians and other
health professionals have an opportunity
to communicate nutrition facts and
make evidence-based recommendations
about healthy eating in the setting
of their ongoing interactions with
adolescent athletes and their families.
The purpose of this review is to describe
the nutritional needs of adolescents
participating in sport and highlight
the potential for nutritional risk.
Endorsed by professional organizations,
our recommendations emphasize a
balanced eating pattern that includes
a wide variety of fresh, minimally
processed whole foods. Our approach
is to empower and teach adolescents
to take responsibility for planning,
preparing, and providing themselves
consistent access to foods and fluids
that deliver nutrients needed for proper
fueling and recovery. Specific talking
points that health professionals can use
in brief interactions with patients and
families are provided to endorse key
behavioral strategies that young athletes
can adopt to achieve peak athletic
performance and optimal nutritional
status.
Keywords: nutrition; adolescent;
sports; RED-S; disordered eating
Sports Nutrition for
Adolescents
Nutrition advice for adolescent athletes
has, at its foundation, the principles of
sound nutrition focused on adequacy to
support the adolescent’s needs for
growth and development in addition to
increased needs for training and
performance in sport. This advice is
built on the US Dietary Guidelines,1
which promote a nutritionally balanced
eating pattern containing a daily variety
of nutrient-dense foods. Before bringing
sport-specific advice into the
conversation, the building blocks of
healthy eating and nutritional adequacy
must be in place. Although athletes
certainly have enhanced and often
unique nutritional needs that are
specific to their sport and their training
regimens, proper nutrition to support
adolescent growth is necessary at the
core of any strategy to improve sports
performance. Because of their distinct
needs and transitional life stage,
adolescent athletes are vulnerable to
nutritional risk, fad diets, disordered
598530AJLXXX10.1177/1559827615598530American Journal of Lifestyle MedicineAmerican Journal of Lifestyle Medicine
research-articleXXXX
Sports Nutrition Advice for
Adolescent Athletes: A Time to
Focus on Food
Before bringing sport-specific advice
into the conversation, the building
blocks of healthy eating and
nutritional adequacy must be in
place.
DOI: 10.1177/1559827615598530. Manuscript received July 1, 2015; accepted July 6, 2015. From Miami Dolphins, Miami, Florida (MEB); University of New Hampshire,
Durham, New Hampshire (ME Borkan); and the Department of Health Sciences, Boston University, Boston, Massachusetts (PAQ). Address correspondence to: Paula A.
Quatromoni, DSc, RD, Department of Health Sciences, Boston University, 635 Commonwealth Ave, Boston, MA 02215; e-mail: paulaq@bu.edu.
For reprints and permissions queries, please visit SAGE’s Web site at http://www.sagepub.com/journalsPermissions.nav.
Copyright © 2015 The Author(s)
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eating, and marketing scams for
nutritional products that promise fast
results or improved performance despite
the lack of an evidence base behind
most claims.
For athletes, there are no shortcuts or
substitutes for proper nutrition for
optimal performance in sport.
Supplements and functional foods will
never overcome the deficits of poor
nutrition for an athlete. The needs of
adolescent athletes are different from the
needs of adults and professional athletes,
and the needs of competitive athletes are
different from those of recreational
athletes. Athletes in power sports have
needs that are different from those in
endurance sports and from those of
sprinters. Even within a sport, field
players have different needs from
goalies, and swimmers have different
needs from divers.2,3 Delving into these
sport-specific nuances is beyond the
scope of this review, but there are
several books written by registered
dietitians (RDs) to guide athletes and
practitioners more specifically.4-8
Nonetheless, the common goal for every
athlete is to achieve healthy eating
behaviors centered on nutrient-dense
and varied food choices, adequate
hydration, dietary patterns that feature
balanced meals and snacks to properly
fuel training and competition and to
enhance recovery, and intuitive eating
behaviors that connect mind, body, and
performance for the most successful
outcomes.
Whereas functional foods or
nutritional supplements may be
indicated for certain individuals under
certain circumstances and under the
supervision of a RD and/or physician,
they do not form the basis of sports
nutrition, and they are not generally
recommended for adolescent athletes.9-13
A diet based on fresh and minimally
processed whole foods is what is
advocated by professional organizations,
including the Academy of Nutrition and
Dietetics and the American College of
Sports Medicine.10-12 For athletes whose
goals include weight management or
altering body composition to either
build muscle mass or lose body fat or
for athletes who have developed
disordered eating or clinical eating
disorders, referral to an RD is
recommended. In all cases, we
specifically recommend a nondiet
approach to sports nutrition14 that is
weight neutral and centered on
respecting body shape and size
diversity,15 promoting a holistic
approach to achieve wellness and
athletic goals, and that is grounded in
eating competence16 and intuitive,
mindful eating.17,18
Healthy Eating Advice
for Adolescent Athletes
The nutritional well-being of athletes
depends on knowledgeable food
choices. In fact, because of their special
needs for proper fueling and hydration,
athletes are faced with several
opportunities demanding well-informed
food choices every day, at every meal.
Yet many adolescent athletes pay little
attention to nutrition and largely
underappreciate their protein and
calorie needs, whereas others are
influenced by dieting advice, functional
foods/supplements marketed to athletes,
and the desire to achieve either a
competitive edge or an idealized athletic
body type. With the help of a qualified
sports nutritionist, athletes can learn to
meet their nutritional needs with a
flexible eating style that balances
favorite foods with nutrient-rich foods to
satisfy hunger, fuel workouts, maximize
performance, and promote both
physical health and emotional wellness.
Athletes need a varied and balanced
eating plan that is adequate in energy,
macronutrients, essential fatty acids, fiber,
vitamins, and minerals. Although there are
professional recommendations that guide
the appropriate selection of foods and
fluids for athletes, the timing of nutrient
and fluid intake relative to exercise and
competition, and supplement choices for
optimal health and sports
performance,10-12 the underlying principles
of sound nutrition for health promotion in
the general adolescent population form
the foundation of dietary advice for those
who participate in sports. The eating
pattern that is recommended is one that
allows growth, development, and
maturation of youths and adolescents19,20
and maintenance of a healthy body
weight.10-12 These nutritional goals can be
met by including a predominance of plant
foods in the daily diet, specifically fruits,
vegetables, whole grains, legumes, nuts,
seeds and unsaturated vegetable oils;
inclusion of lean animal proteins,
specifically low-fat dairy foods that
provide vitamin D and calcium, fish,
poultry, and iron-rich lean meats; and
moderation of foods high in saturated or
trans fats, sodium, and added sugars. In
general, no vitamin and mineral
supplements are required if an athlete is
meeting energy needs by eating a
balanced diet containing a variety of
whole foods and is maintaining body
weight.9-13
To meet such high nutritional needs,
athletes need to fuel their bodies
frequently throughout the day. This
involves a daily commitment to 3 meals
and frequent snacks strategically
placed before and after workouts,
practice, and competition. This level of
commitment requires adolescent
athletes to prioritize nutrition and
feeding themselves, taking personal
responsibility for ensuring ready access
to nutritious foods, snacks, and fluids.
Selection of foods that are nutrient
dense, easily digested, and well
tolerated are equally high priorities.
Nutritional Risk in
Adolescent Athletes
Athletes participating in different sports
have unique nutritional needs because of
differences in energy expenditure,
hydration, and the demands of the sport.
Challenges and obstacles to good
nutrition are also distinct within
subgroups of athletes. Eating behavior is
highly personal, yet heavily influenced
by environment and important others,
including peers, teammates, professional
athletes, coaches, celebrities, and the
media. As such, unhealthy behaviors and
nutrition misinformation can set an
athlete on a path that could undermine
athletic performance, contribute to sports
injuries, and have serious health
consequences. These circumstances
introduce vulnerability to nutritional risk
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that spans a spectrum and can include
dieting, restrictive eating, disordered
eating (anorexia nervosa, bulimia
nervosa, binge eating disorder, anorexia
athletica, and orthorexia nervosa),
misuse of nutritional supplements,
“uninformed” vegetarianism, and a
variety of unhealthy weight-cutting
practices that can sabotage athletic
performance.
Adolescent athletes are quite vulnerable
to the ill effects of suboptimal nutrition.
Not only is their performance in sport
threatened, but their growth,
development, and maturation can be
impaired by poor nutrition. Among the
special issues that physicians caring for
adolescent athletes are urged to address
are nutritional needs and supplement
use. While focusing on achieving healthy
body weights and avoiding use of
supplements and ergogenic aids, a 2008
consensus statement for team physicians
made a clear recommendation to
emphasize health and performance over
weight goals and to understand the
impact of pathological weight behaviors
on adolescent growth and development.13
Three major concerns are iron
deficiency anemia, compromised bone
health, and disordered eating/eating
disorders. A well-described combination
of risk factors known as the female
athlete triad consists of inadequate food
intake, amenorrhea, and reduced bone
mineral density.21,22 This triad poses a
specific threat to athletes in both the
short and long term because the
opportunity to reach peak bone mass
can be negatively affected by poor
nutrition during adolescence. In an
updated definition acknowledging that
male athletes are similarly affected, the
triad was described as one piece of a
more comprehensive syndrome called
RED-S (Relative Energy Deficiency in
Sport). RED-S consists of “impaired
physiological function including, but not
limited to, metabolic rate, menstrual
function (in females), bone health,
immunity, protein synthesis, and
cardiovascular health caused by relative
energy deficiency” (p. 491) where an
imbalance occurs between dietary
energy intake and energy expenditure
required to sustain homeostasis, health
and activities of daily living, growth,
and supporting activities.23 The resulting
package of low energy availability,
disordered eating behavior, and
pathological weight control measures
that may include starvation, excessive
exercising, purging, or laxative abuse,
often driven by body image
dysmorphia, results in hormonal and
metabolic imbalances, serious medical
complications, sports injuries, and
impaired athletic performance.24
Adolescent athletes are vulnerable to
the pressures of competitive sports and
the demands of physical training on
their still-developing bodies as well as
the influence of coaches, teammates,
peers, parents, society, culture, and the
media. There is tremendous pressure,
for example, exerted by society and the
media that idolizes thinness and an
ideal body image—one that is far
different from the average adolescent
athlete’s body size or shape. This is not
only an issue for female athletes who
perceive the need to diet, but also for
male athletes who are faced with the
challenge of developing “abs of steel.”
Adolescents do not necessarily have
the nutrition knowledge to practice
sports nutrition, nor do coaches who
most typically coach at the middle
school or high school level. Taken
together, there is tremendous potential
for misinformation and pressure for
dieting behavior or supplement use.
The risk for disordered eating and
eating disorders is high in the
adolescent athlete population.25,26
Role of Physicians
and Other Health
Professionals
For nutrition advice to be adopted and
sustained by adolescents, it must be food
based, practical, achievable, and
personally relevant. Yet sports nutrition
guidelines are oftentimes nutrient based,
framed in technical terms involving
mathematical equations, and highly sport
specific, leaving athletes confused and
misinformed, unable to translate the
advice to their own personal needs and
vulnerable to adverse outcomes. The role
of the nutrition professional in sport is to
successfully translate these guidelines
from nutrients to foods, and from science
to practice.
Recognizing nutritional risk and
making referrals to RDs is essential for
those in need of nutrition assessment
and counseling. This task is a priority for
physicians and other health
professionals who work with adolescent
athletes. In addition, having proactive
conversations with youths and families
to share evidence-based advice about
healthy eating is a strategy that can
promote wellness, prevent injury, and
help athletes achieve their goals in sport.
Appropriate messages that physicians
and other health professionals can
convey in brief interactions to endorse
healthy habits for adolescent athletes are
summarized below. In general, strategies
that promote positive and empowering
messages that encourage adolescents to
take responsibility for feeding
themselves and to focus on foods to
include to maximize nutrition, rather
than focusing on foods to restrict or
avoid, are recommended.
Fill your plate with fresh food:
Reflect on your food choices and
consider how many of the things
you eat come from packages that
you simply tear open and eat, or
heat and eat. For good health
and sports performance, it is time
to shift the balance to include
real foods like fresh fruits, fresh
vegetables, nuts, beans, dairy,
lean meats, chicken and fish, and
minimally processed whole grain
foods in your daily diet. Fuel
your body with food, not with
supplements and energy drinks
or other sports products that
masquerade as food.
Eat to compete: Athletes need to eat
breakfast, lunch, and dinner with
snacks in between to be properly
fueled for performance. Skipping
meals is not a strategy for success.
Break your overnight fast
(“breakfast”) with a balanced
meal. Follow this simple meal-
building strategy to create
balanced meals including these
key components:
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Reload for rapid recovery: Exercise
creates muscle breakdown, so it is
important to refuel your body
within 30 minutes after practice or
a competition to promote muscle
repair. Best choices for recovery
nutrition are those that provide a
combination of fluid, electrolytes,
carbohydrates, and protein. Try
chocolate milk or yogurt, a mini
bagel with peanut butter and an
apple, or homemade trail mix of
nuts, dried fruit, and whole grain
cereal along with recovery fluids.
Hydrate: Under most circumstances,
water is the only sports hydration
you need, especially if you are
fueling yourself by eating a variety
of healthy foods throughout the
day.
Color your plate: Different-colored
foods have different nutrients.
Getting several colors onto your
plate at every meal or snack
delivers more nutrition to your
body. Do not just “eat white” by
loading your plate with white rice,
chicken, and cheese. Add color by
adding tomato salsa, black or
brown beans, and grilled
vegetables like peppers and
onions.
Plan ahead: Good nutrition does not
just happen. It involves some
work and advance planning. It
requires access to healthy choices
and hydration. Just like you pack
up your sports gear, pack snacks
like fruit, string cheese, whole
grain crackers, nuts, or granola
bars into your bag for long bus
rides so you do not miss the
recovery nutrition window
needed to fuel your body after
the game.
Change it up: Peak performance
requires athletes to be well
nourished, uninjured, fit, focused,
and ready to compete. Sports
nutrition is not just about calories
to achieve weight or body
composition goals; nor is it all
about protein for muscles or
carbohydrates for fuel. It is also
about micronutrients like iron to
avoid anemia, calcium and vitamin
D for bone health, and other
vitamins, minerals, and
antioxidants for wellness,
immunity, and recovery from
injury or surgery. Eating an
adequate variety of nutritious
whole foods is your best strategy
to achieve these goals.
Ask for help: Disordered eating and
eating disorders are more common
than you might think.
Furthermore, amenorrhea in
female athletes is not normal and
is one of several clues, along with
weight loss or underweight status,
that food intake is insufficient
compared to the energy demands
of training for sport on top of
adolescent growth needs. It is
important to address these
warning signs of nutritional risk,
and help is available to get you
back on track. If you are having
difficulty feeding yourself or
maintaining weight in a healthy
range, seek help from a physician,
qualified health professional, and/
or registered dietitian.
AJLM
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