Proper nutrition is supportive of peak performance for athletes of all levels. It fuels performance, supports recovery, and can help reduce  the risk of injury. Yet even experienced athletes can fall into common nutrition pitfalls that limit their potential. Here are some common mistakes that athletes make with their nutrition (from my practical RD experience) and how to fix them.

1. Skipping Meals or Underfueling 

The Mistake: Some athletes believe eating less will improve performance or keep weight down. Underfueling can lead to fatigue, decreased strength, poor recovery, and even hormonal imbalances.

The Fix:

  • Eat regular meals and snacks that include carbohydrates, protein, and healthy fats.
  • Use pre- and post-workout snacks to fuel training and aid recovery (e.g., banana with nut butter or Greek yogurt with berries). Nutrient timing is everything, working with a qualified sports dietitian can help you optimize fueling beverages and snacks 

2. Neglecting Carbohydrates 🍞

The Mistake: Many athletes cut carbs in favor of high protein diets. Carbohydrates are your body’s primary energy source for training.

The Fix:

  • Include complex carbs like oats, quinoa, sweet potatoes, and whole grains in your meals.
  • Time carbohydrate intake around workouts to maximize energy and recovery. 

3. Not Staying Hydrated 💧

The Mistake: Dehydration can lead to fatigue, slower reaction times and poor overall recovery. Athletes often underestimate how much fluid they lose through sweat.

The Fix:

  • Drink water consistently throughout the day, not just during training.
  • Consider electrolyte beverages or supplements if you are a heavy sweater.
  • Monitor urine color—light yellow indicates proper hydration.

4. Overlooking Micronutrients 🥦

The Mistake: Focusing only on calories and macronutrients can lead to deficiencies in vitamins and minerals like iron, calcium, vitamin D, and magnesium—all nutrients play a role in performance and sports.

The Fix:

  • Eat a variety of colorful fruits and vegetables, nuts, seeds, and whole grains.
  • Consider supplementation only if deficiencies are identified by a healthcare professional. 

5. Relying on Packaged Food and Beverages 🍕

The Mistake: Energy bars, protein shakes, and packaged foods are convenient but often high in sugar, low in nutrients, and may not provide sustained energy.

The Fix:

  • Packaged foods and beverages can certainly fit into your diet. If you are questioning how to read food labels, and priortize ingredients reach out to a qualified sports RD. Packaged foods contain key nutrients, calories, and added functional ingredients that can help support your fitness journey when used with proper meal planning. 

Nutrition is a powerful tool for athletes. By avoiding these common mistakes and focusing on balanced meals, hydration, and micronutrient-rich foods, athletes can maximize performance, recover faster, and protect their long-term health.