When it comes to half-marathon training and performance, nutrition is a key player. Providing your body with the right nutrients helps enhance stamina, promote faster recovery, and maintain mental sharpness during long-distance runs. Below, Kelsey Martin, CNS, LDN, at Nutrition by Kelsey with Foundations Family Medicine, LLC, shares examples of how proper nutrition can impact your half-marathon performance:

Optimized Energy Levels and Fuel Reserves
A well-rounded diet delivers the energy needed for consistent performance during endurance runs. Proteins, carbohydrates, and healthy fats are essential macronutrients that ensure a steady energy supply.
Balanced Nutrition
Combining these macronutrients helps maintain energy levels during training and on race day.
Strategic Carbohydrate Loading
Incorporating strategic carbohydrate intake builds up glycogen stores, a crucial energy source for prolonged physical activities.
Carb-loading isn’t just about big plates of pasta. Choose healthy, colorful carbs instead. These options offer key nutrients. Include nutrient-dense, complex carbohydrate options such as sweet potatoes, quinoa, lentils, beans, and whole grains, all of which also support digestive health.

Enhanced Endurance and Stamina
Staying hydrated and keeping electrolyte levels balanced is vital to performing your best and delaying fatigue.
Adequate Hydration
Proper hydration minimizes the risk of cramping and exhaustion, enabling stronger, longer runs. Most endurance athletes should drink a minimum of 80 oz of water daily (not including hydration while running).
Tip: Mix up your hydration routine by including non-caffeinated herbal teas, mineral water, or fruit-infused water (think lemon or lime).
Balanced Electrolytes
Maintaining balanced electrolytes ensures your muscles can contract efficiently, reducing the likelihood of dehydration-related slumps in performance. Electrolytes are minerals that include potassium, sodium, magnesium, chloride, calcium, and more.
Tip: Many natural foods are packed with electrolytes, including bananas, avocados, citrus fruits, spinach, zucchini, broccoli, nuts, seeds, legumes, and yogurt.

Accelerated Recovery and Injury Prevention
Recovery plays a role just as crucial as training itself. Consuming the right nutrients supports muscle repair and minimizes injury risk.
Sufficient Protein Intake
Adequate protein consumption aids in muscle and tissue recovery after those grueling long runs. Aim to include protein sources in every meal. Examples include chicken, eggs, Greek yogurt, beans, tofu, lean red meats, and nuts/seeds.
Fiber- and Probiotic-Rich Foods
Foods rich in probiotics and fiber keep your gut microbiome balanced, ensuring efficient digestion and nutrient absorption for overall health. Great probiotic options include kefir, yogurt, miso, tempeh, and pickled items like sauerkraut. For fiber, stock up on veggies, fruits, whole grains, nuts, seeds, and legumes.

Sharp Mental Focus and Clarity
Marathons challenge both the body and the mind, making mental strength just as important as physical endurance. The correct diet can sharpen your focus and keep your energy steady.
Omega-3 Fatty Acids
Omega-3 fatty acids benefit brain health and cognitive function, so you can stay mentally resilient and alert throughout your race. Incorporate foods like salmon, sardines, walnuts, chia seeds, and flaxseeds.
Balanced Blood Sugar Levels
Stabilizing blood sugar levels helps prevent energy crashes, ensuring you stay focused and motivated until the finish line. Opt for foods like berries, vegetables, nuts, whole grains, lentils, fatty fish, and avocado to maintain balanced blood sugar.
Boost Your Marathon Performance With Good Nutrition
Focusing on proper nutrition is key to improving your half-marathon performance. A nourished body leads to greater endurance, quicker recovery, and a sharper mind — all crucial components for a strong finish. Start implementing smart eating habits today and unlock your full running potential!
If you want to learn more about addressing nutritional imbalances or boosting your nutrition, discover how Kelsey can help guide you toward balanced, achievable change. Book a free 15-minute consultation or call (970) 439-2104 to start or continue your wellness journey!