Whether you’re in the classroom, on the field, or both—focus matters. Mental fatigue can lead to slower reaction times, decreased motivation, and poor decision-making. The good news? The foods you eat can help sharpen concentration and sustain mental energy throughout the day.
Let’s take a look at some specific foods and nutrients that support focus and cognitive performance for student-athletes.
1. Carbohydrates for Brain Fuel
Your brain’s preferred source of energy is glucose, which comes primarily from carbohydrates. Studies show that consistent, moderate carbohydrate intake supports better concentration, memory, and reaction time—especially before and during prolonged exercise.
Examples of Carbohydrates
- Oatmeal
- Whole-grain Toast
- Cereal
- Fruit
- Rice
- Quinoa
- Potatoes
- Oat-Based Granola Bars
Pro tip: Avoid skipping meals—steady blood sugar means steady focus.
2. Omega-3 Fatty Acids for Brain Function
Omega-3s (particularly DHA and EPA) are essential for brain health, supporting nerve communication and reducing inflammation. Research links higher omega-3 status with improved attention and reduced mental fatigue in athletes.
Example of Omega-3 Fatty Acids:
- Salmon
- Tuna
- Sardines
- Chia seeds
- Walnuts
- Flaxseed
3. Iron for Oxygen and Energy Delivery
Iron supports oxygen transport to both your brain and muscles. Low iron levels—especially common in female athletes and endurance sports—can lead to brain fog, fatigue, and poor concentration.
Example of Iron-containing Foods:
- Red meat
- Chicken
- Turkey
- Lentils
- Beans
- Spinach
- Iron-fortified cereals or oatmeal
Pro tip: Pair the above foods with a vitamin C-rich food to boost absorption
4. Hydration for Mental Alertness
Dehydration—even as little as 1–2% body weight loss—can impair attention and cognitive performance.
What to do:
- Hydrate regularly throughout the day
- Vary your hydration sources as needed
- Include fluid-containing food sources like fruit, vegetables, soups, etc.
References:
- Gómez-Pinilla, F. (2008). Brain foods: The effects of nutrients on brain function. Nature Reviews Neuroscience, 9(7), 568–578. https://doi.org/10.1038/nrn2421
- Lieberman, H. R. (2012). Nutrition, brain function and cognitive performance. Appetite, 60(1), 29–35. https://doi.org/10.1016/j.appet.2012.07.006
- Maughan, R. J., Watson, P., Cordery, P. A., Walsh, N. P., Oliver, S. J., Dolci, A., Rodriguez-Sanchez, N., & Galloway, S. D. (2018). A randomized trial to assess the potential of different beverages to affect hydration status: Development of a beverage hydration index. Nutrition Reviews, 76(9), 639–647. https://doi.org/10.1093/nutrit/nuy022
- Meeusen, R. (2014). Exercise, nutrition and the brain. Sports Medicine, 44(1), 47–56. https://doi.org/10.1007/s40279-014-0150-5
- Thomas, D. T., Erdman, K. A., & Burke, L. M. (2016). Position of the Academy of Nutrition and Dietetics, Dietitians of Canada, and the American College of Sports Medicine: Nutrition and athletic performance. Journal of the Academy of Nutrition and Dietetics, 116(3), 501–528. https://doi.org/10.1016/j.jand.2015.12.006
