What To Eat Before a Marathon To Optimize Performance, According to a Sports Dietitian
One rule of thumb: Don’t try anything new.
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You’ve trained for weeks, battled weather, killer long runs, chafing and blisters. Hopefully you’ve also been stepping up fueling strategies along the way. Getting nutrition right for your needs as a runner is the key to unlocking your optimal potential.
Generally, you need plenty of calories from carbs, protein and healthy fats along with fluid and electrolytes. Including all these nutrients is non-negotiable. As race day approaches, play it safe. Limit or eliminate foods and beverages that tend to cause you digestive woes. Keep in mind that there’s no one size fits all for what to eat; it’s all a very personalized process. Focus on foods you like and tolerate well.
With that, here’s a breakdown of how to approach meals in the days leading up to a race.
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What should you eat the week before a race?
As you taper your runs, increase your carb intake – this is the foundation of “carbo-loading” – which many runners get wrong. Take in extra liquids in small doses throughout the day to prevent bloating and plan according to the weather forecast. High humidity may call for extra fluid and electrolyte replenishment. Keep meals simple and balanced with protein, carbs and inflammation-fighting antioxidants from fruits and vegetables. Here are some ideas:
- Smoothies made with fruit and yogurt or protein powder
- Yogurt or cottage cheese bowls with fruit and granola
- Turkey and cheese wrap with hummus and veggies
- Pasta with salmon and salad
- Quinoa with sweet potato and grilled chicken
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What should you eat the night before a race?
Marathon eve is for your favorite go-to dinner. You want a meal that you love the taste of and digest comfortably. Be generous with the servings of carbs, choose lean protein and keep it light on fiber. Opt for cooked vegetables over raw for easier digestion and give yourself plenty of time to digest the meal before heading off to bed. If you have traveled out town for the race and need to rely on take-out – plan ahead or don’t be shy about asking a restaurant to modify the meal to your specifications. Opt for meals that look like:
- Pasta with chicken and cooked vegetables
- Tofu stir-fry noodle bowls
- Steak, rice and roasted vegetables
- Ground turkey with rice and steamed carrots
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What should you eat on race day?
Most marathons begin in the morning, so a properly balanced breakfast is imperative. The time you need to get up will dictate what you have time to eat and digest comfortably.
The number one key to success on race day is stick to what you know. Resist the temptation to experiment with giveaway items out on the course – you don’t want to learn they don’t agree with you while you are running the race.
By this point, you probably know the snacks and electrolytes that work for you during a run. Stick to your plan and you will do great.
A balanced race day breakfast might look like:
- Bagel with peanut butter and banana
- Overnight oats with granola
- Toast with scrambled eggs and applesauce
- Breakfast burrito with eggs, cheese and potatoes
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