Are Young Athletes Fueling Properly for Growth and Performance?

By Barbara Lewin, RDN, LDN Sports and Functional Nutritionist

One of the most common questions parents ask is simple and important:

“Is my child eating enough to support their sport?”

Young athletes train hard, grow quickly, and juggle school, practices, games, and social life. Even when they look healthy and perform well, many are underfueled without realizing it.

Being active does not automatically mean nutrition needs are met. In fact, young athletes are one of the most commonly underfueled groups.

Why Nutrition Matters More for Young Athletes

Young athletes are not just training. They are growing.

That means their bodies need fuel for:

• Muscle repair

• Bone development

• Hormone production

• Brain function

• Immune health

When nutrition falls short, performance suffers and long-term health can be affected.

Parents often notice:

• Low energy or constant fatigue

• Mood swings or irritability

• Frequent injuries

• Trouble focusing at school

• Slow recovery between practices

These are often nutrition and recovery issues, not motivation problems.

Are Young Athletes Eating Enough?

In many cases, no.

Busy schedules lead to skipped meals, rushed breakfasts, and reliance on snacks instead of real meals. Appetite does not always match energy needs, especially during growth spurts.

Key signs a young athlete may not be eating enough include:

• Hunger late at night

• Energy crashes during practice

• Difficulty keeping up with training volume

Regular meals and planned snacks throughout the day are essential.

The Role of Food Quality

Calories matter, but food quality matters too.

Many young athletes rely heavily on packaged snacks, bars, and convenience foods. These foods are easy, but they do not always support consistent energy, recovery, or focus.

Ultra-processed foods can:

• Spike energy and lead to crashes

• Displace nutrient-dense foods

• Increase inflammation over time

Parents often assume that training “burns it off,” but food quality still affects performance and recovery. This is explained in more detail in How Ultra-Processed Foods Really Impact Athletic Performance.

The goal is not perfection. It is balance. Whole foods should make up most meals, with flexibility for busy schedules and competition days.

Supporting Picky Eaters and Food Sensitivities

Many young athletes are picky eaters or have food allergies or intolerances. This can make meeting nutrition needs even more challenging. I work with families to create personalized strategies that fit each child’s preferences, sensitivities, and training schedule. Together, we find nutrient-dense foods they will actually eat, ensuring energy, recovery, and growth are not compromised. Parents often tell me that these small, tailored changes make a big difference in performance and overall wellbeing.

Carbohydrates Are Not the Enemy

Carbohydrates are essential for young athletes.

They fuel muscles and the brain and support recovery between sessions. Restricting carbs can lead to fatigue, poor performance, and slower growth.

Good carbohydrate sources include:

• Fruit

• Potatoes or sweet potatoes

• Rice or whole grains

• Dairy like milk or yogurt

Carbohydrates should be included at most meals, especially around training.

Protein and Recovery

Protein supports muscle repair and growth, but more is not always better.

What matters most is spreading protein across the day instead of loading it into one meal.

Helpful protein options include:

• Eggs

• Poultry or fish

• Dairy

• Beans or lentils

Consistent protein intake supports recovery and reduces soreness.

Sleep, Illness, and Knowing When to Rest

Young athletes often push through fatigue or illness because they do not want to miss practice or fall behind.

This is where parents play a key role.

Training through illness increases stress on the body and slows recovery. It can also increase injury risk and prolong symptoms.

Knowing when to rest matters. This is discussed further in Should I Exercise When I’m Sick? and is especially important for growing athletes whose immune systems are still developing.

Sleep also plays a major role. Most young athletes need 8 to 10 hours per night. Without enough sleep, nutrition alone cannot fix fatigue.

The Parent’s Role

Parents are not expected to micromanage every bite of food.

The goal is to:

• Provide regular meals and snacks

• Encourage balanced food choices

• Normalize rest and recovery

• Watch for signs of underfueling

Creating structure at home helps young athletes develop habits they carry into adulthood.

How an Introductory Session Can Help Families

Parents often feel unsure whether their athlete is eating too much, too little, or the wrong foods.

In an Introductory Session, we:

• Review training schedules and growth patterns

• Identify fueling gaps

• Clarify what matters now versus later

• Create realistic strategies that fit school, sports, and family life

This removes confusion and helps young athletes feel stronger, more energized, and supported.

👉 Learn more here:
https://sports-nutritionist.com/virtual-session-special

The Bottom Line

Young athletes need more fuel than most people realize.

Performance issues often come from:

• Not eating enough

• Poor food quality

• Skipped meals

• Inadequate recovery

Supporting nutrition, recovery, and rest early helps young athletes perform better now and stay healthier long term.

Strong habits built early last a lifetime.