Balanced Nutrition for Youth Athletes: Supporting Growth and Performance

Apr 5 / Poppy Hawe

Nutrition is a topic that young athletes—and their caregivers—need to be well educated about to ensure optimal health and performance. As youth athletes undergo growth spurts and tackle high-intensity training, the right nutrition supports their development, enhances recovery, and maximizes performance. It’s not just about how much they eat; age, gender, and activity level also determine their unique nutritional needs.

Educating young athletes on proper nutrition provides them with lifelong tools to fuel their bodies effectively, making a lasting impact on both their athletic performance and overall well-being.

By implementing straightforward strategies, we can ensure young athletes receive balanced nutrition with the right mix of macronutrients and portion sizes. Small, consistent changes can significantly impact their energy levels and overall performance.

Understanding Energy Demand

Young athletes have unique energy and nutritional needs, which can vary significantly based on their age and gender:

Age Differences
 

For athletes aged 7 to 10 years, smaller, more frequent meals are essential due to their faster metabolism and growth. Nutrient-dense snacks like fruits, yogurt, and whole grains provide quick energy. As they transition into their pre-teen and teenage years (11 to 15), larger meals become necessary, especially around training sessions. Focusing on carbohydrates and protein during this stage supports muscle development and recovery.

Gender Differences

Boys typically require more calories, particularly in strength-based sports, due to increased muscle mass. Girls have different needs surrounding calcium and iron, especially during menstruation, to promote bone health and avoid deficiencies that could hinder their performance. While both genders should aim for frequent balanced meals, slight adjustments may be necessary to meet their distinct needs, especially if the athlete has specific dietary needs such as vegetarianism, veganism or allergies/intolerances.

It's important for caregivers to recognise that active children may need more food than what is typically considered "normal” or inline with their non-active peers. They shouldn't hesitate to provide additional options to support their kids, regardless of the potential external judgments of food choices or portion sizes with their active children.

Key Macronutrients for Young Athletes

To ensure proper fueling, understanding the three key macronutrients is vital:

Carbohydrates: The body’s primary source of energy, converting into glycogen to fuel muscle activity. Young athletes should aim for 5-10g/kg of body weight per day depending on their training level (see Infographic 1 for sources).

Protein: Essential for muscle repair and growth, especially for those engaged in rigorous activities. Recommendations suggest approximately 1.0-1.6 grams of protein per kilogram of body weight daily, depending on training intensity (see Infographic 1 for sources).

Fats: Necessary for hormone production and overall health, and they provide a dense source of calories. Aim for 1-1.2g/kg of body weight per day (see Infographic 1 for sources).
Infographic 1: Sources of Carbohydrates, Proteins, and Fats that support a balanced diet for young athletes.

Overcoming Nutrition Challenges

Inevitably there are obstacles and challenges to implementing good nutrition with young athletes below are some common challenges and suggested solutions:

The Role of Sweets as Pre-Workout Fuel

Sweets and simple carbohydrates can be a great pre-workout fuel for youth athletes. A small treat can provide a quick energy boost, helping to enhance performance, especially during shorter, high-intensity training sessions. Foods like fruit juice, energy gels, gummy candies or cereal bars can help maintain energy levels and improve focus. While moderation is key, including sweets in a balanced diet can offer physical and psychological benefits, ensuring young athletes enjoy their nutrition while fueling their passion for sports.

Micronutrients for Growth and Development

While macronutrients are often the topic of conversation, the importance of micronutrients—vitamins and minerals—shouldn't be overlooked, as they are essential for health, growth, recovery, and performance. Key micronutrients for young athletes include calcium, vitamin D, and iron.

Calcium and vitamin D are crucial for bone strength, especially during adolescent growth spurts. Good sources include dairy, leafy greens, and fortified foods, with vitamin D also synthesized through sunlight. Adolescents need 1,300 mg of calcium and 600 IU of vitamin D daily.

Iron
 is vital for oxygen transport and energy production, is especially important for endurance athletes and post-menstrual girls. Found in lean red meat, fish, legumes, and fortified cereals, iron’s absorption is enhanced when paired with vitamin C-rich foods. Recommended daily iron intake is 11 mg for boys and 15 mg for girls aged 14-18.


Practical Strategies for Micronutrient Intake

Building a Balanced Plate

Here's a simple guide for parents and young athletes to create balanced meals:

Protein:
About ¼ of the plate (lean chicken, fish, tofu, eggs).

Carbohydrates:
Another ¼ for whole grains or starchy vegetables (brown rice, pasta, sweet potatoes).

Vegetables and Fruits:
Fill half the plate with colorful veggies and fruits for fiber, vitamins, and minerals.

Healthy Fats:
Add a small portion of healthy fats, like a handful of nuts or a drizzle of olive oil.

On a day where there is more training/exercise a higher proportion of carbohydrate on the plate can be used to adequately fuel (see infographic 2).
Infographic 2: A visual of a balanced plate, looking at the distributions of protein, carbohydrates and fat with a higher distribution of carbohydrate (1/2 plate).

Example Daily Meal Plan for a Youth Athlete

For a child who attends school and trains in the evening, here’s a balanced meal plan to fuel their day:

Breakfast:
Oatmeal topped with banana, peanut butter, and a glass of milk or fortified plant milk.

Mid-Morning Snack:
Apple slices with a handful of almonds.  

Lunch: Whole-grain turkey and cheese sandwich with lettuce and tomato, baby carrots, and Greek yogurt.  

Afternoon Snack (Pre-training): Whole-grain crackers with hummus and orange slices.  

Dinner (Post-training): Grilled chicken, brown rice, steamed broccoli, and a small salad with olive oil.  

Evening Snack: Cottage cheese with mixed berries (optional).

Conclusion

Empowering young athletes and their care-givers with nutrition knowledge and balanced nutrition is essential for young athletes to support their growth, enhance performance, and promote overall well-being.

By understanding their unique energy demands based on age, gender, and activity level, caregivers can make informed choices to provide the right mix of macronutrients—carbohydrates for energy, protein for muscle repair, and healthy fats for hormone production.

Additionally, key micronutrients like calcium, vitamin D, and iron play a crucial role in bone strength, oxygen transport, and overall health. Hydration is equally important, with consistent water intake ensuring sustained energy and cognitive function. Small, practical strategies, such as preparing nutrient-rich meals, offering balanced snacks, and involving children in meal planning, help build lifelong healthy eating habits.

Parents and caregivers should also recognize that active children require more food than their less active peers, and portion sizes should reflect their increased energy demands. By prioritizing well-rounded nutrition, young athletes can perform at their best, recover efficiently, and develop a strong foundation for lifelong health.

Key Take Aways:

  1. Energy Needs Vary – Age, gender, and training intensity influence dietary requirements.

  2. Balanced Macronutrients – Carbohydrates, proteins, and fats must be appropriately distributed for sustained energy and muscle recovery.

  3. Micronutrient Focus – Calcium, vitamin D, and iron are crucial for bone health, oxygen transport, and overall athletic performance.

  4. Hydration is Critical – Regular water intake prevents fatigue and supports cognitive function.

  5. Practical Strategies Work – Prepping snacks, packing extra food for school, and including quick meal options can help young athletes stay fueled.

  6. Nutrition is a Long-Term Investment – Educating children on healthy eating habits ensures lasting benefits beyond their athletic years.

Want to learn more about nutrition for youth athletes?

Learn more about nutrition for youth athletes with two leading nutritionists in our online learning platform:

Dr. Marcus Hannon - Energy Requirements of Elite Academy Footballers

Dr. James Morehen - Performance Nutrition for Youth Athletes
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