Meal Prep

Pre-Race Nutrition Guide for Ultramarathon Runners

Written by: edcasia.co

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Time to read 18 min

Key Takeaways for Pre-Race Nutrition for Ultramarathon Runners

  1. Balance Your Macronutrients: Ensure your diet includes a balanced intake of carbohydrates, proteins, and fats. Carbohydrates should make up the bulk of your intake to maximize glycogen stores, while proteins and healthy fats support muscle repair and sustained energy.

  2. Proper Timing is Crucial: Start your pre-race nutrition plan 2-3 days before the race, focusing on high-carb meals to build glycogen stores. On race day, consume easily digestible foods and maintain hydration to avoid gastrointestinal issues and ensure optimal performance.

  3. Hydration Strategies Matter: Hydration is essential for maintaining performance and preventing heat-related issues. Drink water and electrolyte solutions regularly, starting days before the race, and listen to your body’s signals to stay adequately hydrated.

  4. Test Your Nutrition Plan: Conduct trial runs to understand how your body responds to different foods and hydration strategies. Simulate race-day conditions to fine-tune your nutrition plan and avoid surprises during the actual race.

  5. Adapt to Conditions: Tailor your nutrition strategy to different environmental conditions, such as hot weather, cold weather, or high altitudes. Adjust your intake of fluids, electrolytes, and energy-dense foods to match the specific demands of the race environment.

Understanding and Planning Pre-Race Nutrition

For ultramarathon runners, nutrition is not just a part of training; it's a cornerstone of performance and endurance. Proper pre-race nutrition can make the difference between a successful race and a grueling ordeal. In this comprehensive guide, we delve into the science and strategies behind effective pre-race nutrition, helping you fuel up for the long haul. From essential nutrients to meal timing, hydration strategies to psychological aspects, we've got everything you need to know to prepare for your next ultramarathon.

Understanding Pre-Race Nutrition

Pre-race nutrition refers to the dietary and hydration strategies implemented in the days before a race. It is designed to maximize energy stores, ensure proper hydration, and prepare the body for the physical demands of the race. For ultramarathon runners, this involves a careful balance of macronutrients, micronutrients, and fluids to optimize performance and recovery.


Proper pre-race nutrition is crucial because it maximizes glycogen stores, prevents dehydration, supports muscle function, and balances electrolytes. Carbohydrates, stored as glycogen in muscles and liver, provide the primary energy source during prolonged exercise. Adequate hydration prevents heat-related issues and maintains performance. Proteins aid in muscle repair and recovery, while electrolytes are vital for muscle contractions and preventing cramps.


Essential Nutrients for Ultramarathon Runners




Carbohydrates: The Cornerstone of Pre-Race Nutrition


Carbohydrates are the cornerstone of pre-race nutrition. They provide the primary energy source for endurance activities by replenishing glycogen stores. The recommended intake is 7-10 grams per kilogram of body weight 24 hours before the race. Foods rich in carbohydrates include pasta, rice, bread, and potatoes. These foods are easily digestible and can be consumed in large quantities without causing gastrointestinal distress.


Consuming carbohydrates helps to ensure that your muscles are well-stocked with glycogen, which is the stored form of glucose. Glycogen is the primary fuel source during long-duration exercise, and having adequate stores can delay the onset of fatigue. It’s important to focus on high-quality, complex carbohydrates that provide a steady release of energy. Incorporate foods like whole grains, fruits, and vegetables into your diet leading up to the race to ensure a sustained energy supply.


Proteins: Supporting Muscle Repair and Recovery


Proteins are essential for muscle repair and recovery, especially after intense training sessions. Consuming 1.2-2.0 grams of protein per kilogram of body weight daily is recommended for endurance athletes. Foods rich in protein include chicken, fish, tofu, and beans. These sources provide essential amino acids that help repair muscle tissue damaged during training and support overall muscle health.


Protein intake can support muscle repair and help prevent muscle breakdown during prolonged exercise. It’s important to spread your protein intake throughout the day, incorporating it into each meal and snack. This approach ensures a steady supply of amino acids to your muscles, promoting recovery and reducing the risk of injury.


Fats: A Sustained Energy Source


While carbohydrates are the primary fuel, fats provide a sustained energy source, especially during long-distance running. A balanced approach with fats constituting 20-30% of daily caloric intake is ideal. Foods high in fats include avocado, nuts, olive oil, and cheese. These foods provide essential fatty acids and help to maintain energy levels during extended periods of exercise.


Fats are particularly important for ultramarathon runners because they are a dense source of energy. During long-duration events, your body shifts to using a higher proportion of fat as a fuel source. Incorporating healthy fats into your diet can help to enhance your endurance and provide a steady supply of energy. Focus on unsaturated fats from plant-based sources, which are beneficial for heart health and overall well-being.


Vitamins and Minerals: Key Players in Performance


Micronutrients such as iron, vitamin D, and antioxidants play crucial roles in oxygen transport, bone health, and reducing oxidative stress. Ensuring adequate intake through a varied diet or supplements is important. Iron is particularly important for endurance athletes because it is a key component of hemoglobin, which carries oxygen to the muscles. Vitamin D supports bone health and immune function, while antioxidants help to neutralize free radicals produced during exercise.


Including a variety of fruits and vegetables in your diet can help to ensure that you get an adequate supply of vitamins and minerals. Consider incorporating foods like spinach, kale, berries, and citrus fruits, which are rich in micronutrients. If you have specific dietary restrictions or deficiencies, consult with a nutritionist to determine whether supplementation is necessary.

Implementing and Testing Pre-Race Nutrition Strategies

Timing Your Nutrition

Start your nutrition plan 2-3 days before the race. This period is critical for glycogen loading and ensuring optimal hydration levels. By gradually increasing your carbohydrate intake, you can maximize your glycogen stores without overloading your digestive system. Focus on high-quality, nutrient-dense foods that provide sustained energy and support overall health.


Meal Timing Strategies:


  • 24 Hours Before the Race: High-carb meals to maximize glycogen stores.
  • 12 Hours Before the Race: Balanced meals with moderate protein and fats.
  • 6 Hours Before the Race: Lighter meals focusing on easily digestible carbs.
  • 3 Hours Before the Race: Small snacks like a banana or a granola bar.
  • 1 Hour Before the Race: Hydrate and consume a quick-digesting snack if needed.

In the final hours before the race, focus on easily digestible foods that provide quick energy. Avoid heavy, high-fiber foods that can cause gastrointestinal distress. Stick to familiar foods that you have tested during your training to minimize the risk of adverse reactions. Hydrate adequately and consider consuming a small snack like a banana or an energy gel to top off your glycogen stores.


Creating a Balanced Pre-Race Meal Plan


A sample meal plan for the day before the race could include oatmeal with banana and honey and a glass of orange juice for breakfast, a grilled chicken sandwich with whole grain bread and mixed green salad for lunch, pasta with marinara sauce, a side of steamed vegetables, and a fruit smoothie for dinner. On race day, breakfast might include whole grain toast with peanut butter and jelly and an apple, with an energy bar or gel and water as a pre-race snack. Each meal should have a good balance of carbohydrates, proteins, and fats. For instance, a meal with pasta (carbohydrates), chicken (protein), and olive oil dressing (fat) provides a well-rounded nutritional profile.


Creating a balanced meal plan involves planning ahead and incorporating a variety of nutrient-dense foods. Focus on whole, unprocessed foods that provide sustained energy and support overall health. Avoid excessive sugar and processed foods, which can lead to energy crashes and digestive discomfort.


Best Foods for Pre-Race Nutrition


High-carb foods such as pasta, rice, bread, and potatoes provide long-lasting energy. These foods are easily digestible and can be consumed in large quantities without causing gastrointestinal distress. Incorporate a variety of carbohydrate sources to ensure a steady supply of energy.


Protein-rich foods like chicken, fish, tofu, and beans support muscle repair. These sources provide essential amino acids that help repair muscle tissue damaged during training and support overall muscle health. Include a variety of protein sources in your diet to ensure a balanced intake of amino acids.


Healthy fats from avocado, nuts, olive oil, and cheese offer sustained energy. These foods provide essential fatty acids and help to maintain energy levels during extended periods of exercise. Focus on unsaturated fats from plant-based sources, which are beneficial for heart health and overall well-being.


Hydration options include water, essential for all bodily functions, electrolyte drinks to help maintain electrolyte balance, fruit juices for vitamins and hydration, and sports drinks for quick energy and electrolytes. Proper hydration is crucial for maintaining performance and preventing heat-related issues.


Common Mistakes in Pre-Race Nutrition


Common Mistakes to Avoid:


  • Overeating can lead to gastrointestinal discomfort. Focus on balanced, portion-controlled meals.
  • Trying new foods close to race day can result in adverse reactions; stick to familiar foods.
  • Ignoring hydration can severely impact performance, so drink regularly and monitor urine color to gauge hydration levels.

Hydration Strategies

Proper hydration is crucial for maintaining performance and preventing heat-related issues. Drink water and electrolyte solutions regularly, starting 2-3 days before the race. Hydration helps to regulate body temperature, transport nutrients, and remove waste products from the body.


Listen to your body’s signals and drink to thirst. Include electrolyte-rich drinks to maintain balance, as sodium, potassium, and magnesium are key electrolytes essential for preventing cramps and dehydration. Monitor your urine color to gauge hydration levels. Clear or light-colored urine indicates adequate hydration, while dark-colored urine may indicate dehydration. In the days leading up to the race, aim to drink regularly throughout the day rather than consuming large amounts of fluid at once.

Runner at finish line

Tailoring and Adapting Nutrition Strategies

Supplements: Do You Need Them?


Supplements can fill nutritional gaps but should not replace a balanced diet. Consult with a nutritionist before incorporating them into your routine. Common supplements for ultramarathon runners include electrolytes to prevent dehydration and muscle cramps, caffeine to enhance alertness and endurance, BCAAs to support muscle recovery, and multivitamins to ensure adequate intake of essential vitamins and minerals. Always follow recommended dosages and choose high-quality supplements from reputable sources.


Trial Runs and Nutrition Testing


Trial runs help you understand how your body responds to different foods and hydration strategies, allowing you to fine-tune your plan. Simulate race conditions during long training runs and test different meals, snacks, and hydration strategies. Pay attention to your energy levels, digestion, and overall performance, making necessary adjustments to your nutrition plan based on your experiences.


Conducting trial runs under various conditions is essential. Try to replicate race-day scenarios by running at the same time of day, under similar weather conditions, and at the intended race pace. This approach allows you to identify what works best for you and make adjustments to your nutrition plan accordingly. Use these trial runs to test not only your food and drink choices but also the timing and quantity of your intake.


Psychological Aspects of Pre-Race Nutrition


Nutrition plays a role in mental preparation. Eating familiar, comforting foods can help reduce pre-race anxiety. Establish a pre-race eating routine that you follow during training to create a sense of familiarity and reduce race-day stress. Certain foods can help manage stress. For example, complex carbohydrates like oats can increase serotonin levels, promoting a sense of calm.


The psychological aspect of nutrition should not be underestimated. Establishing a consistent routine that includes specific meals and snacks can provide a sense of control and confidence. Knowing that you have a well-tested nutrition plan in place can help alleviate anxiety and allow you to focus on your performance.


Elite Runners’ Pre-Race Nutrition Tips


Elite runners often share their nutrition strategies, providing valuable insights for other athletes. They emphasize the importance of personalized nutrition plans based on individual needs. Reading about the experiences of elite runners can offer practical tips and inspiration. Many top athletes share their favorite meals, snacks, and hydration practices.


For example, elite ultramarathon runner Scott Jurek emphasizes the importance of plant-based nutrition, incorporating a variety of fruits, vegetables, and whole grains into his diet. Kilian Jornet, another renowned ultramarathoner, focuses on balanced meals that include lean proteins, complex carbohydrates, and healthy fats. Learning from the experiences of these athletes can provide valuable insights and help you refine your own nutrition plan.


Adapting Nutrition for Different Race Conditions


In hot weather, focus on hydration and electrolyte balance. Consume cold fluids and foods that are easy to digest. In cold conditions, opt for warm, energy-dense foods. Hydration is still important, but you may need fewer electrolytes compared to hot weather races. At higher altitudes, your body may require more carbohydrates and fluids. Adjust your nutrition plan to account for the increased energy demands and dehydration risk.


Adapting your nutrition strategy to different environmental conditions is crucial for optimal performance. In hot weather, staying cool and hydrated is the priority. Incorporate ice packs, cold drinks, and light, easily digestible foods. In cold weather, prioritize warm, calorie-dense meals and snacks to maintain energy levels and body heat. At higher altitudes, increase your carbohydrate intake to compensate for the greater energy expenditure and the body’s increased reliance on glucose as a fuel source.


Gastrointestinal Issues and Solutions


GI issues like cramping, bloating, and nausea are common during ultramarathons. These can be minimized with careful planning and testing. Avoid high-fiber foods close to race time, stay hydrated and maintain electrolyte balance, and eat smaller, frequent meals leading up to the race. If you experience GI issues during the race, slow down and consume small sips of water or electrolyte drinks. Listen to your body and adjust your pace if necessary.

To prevent GI issues, focus on consuming low-fiber, easily digestible foods in the days leading up to the race. During the race, pay attention to your body’s signals and adjust your intake accordingly. If you encounter issues, slow down, and allow your body time to adjust. Consider carrying ginger chews or anti-nausea remedies as part of your race kit.


Pre-race snacks and Quick Meals


Portable snack options include energy bars, bananas, trail mix, and rice cakes. Quick meal ideas are smoothies, sandwiches, oatmeal, and yogurt with fruit. These options provide quick and convenient sources of energy and nutrients. Ensure that these snacks and meals are tested during your training to avoid any surprises on race day.

Opt for snacks that are easy to carry and consume on the go. Energy bars and gels are popular choices, but homemade options like rice cakes or energy balls can also be effective. Focus on quick meals that can be prepared with minimal effort and provide a good balance of macronutrients. Smoothies, for example, can be customized with various fruits, vegetables, protein powders, and healthy fats to suit your needs.


Role of Sleep in Pre-Race Nutrition


Sleep plays a significant role in nutrition and overall performance. Ensure you get adequate rest in the days leading up to the race to allow your body to recover and store energy. Good sleep hygiene practices include maintaining a regular sleep schedule, creating a comfortable sleep environment, and avoiding caffeine and heavy meals before bedtime.


Adequate sleep is crucial for muscle recovery, glycogen storage, and overall well-being. Aim for at least 7-9 hours of sleep per night in the week leading up to the race. Establish a bedtime routine that includes relaxing activities such as reading, stretching, or meditation to promote restful sleep. Avoid screen time and stimulants like caffeine in the hours before bed to ensure quality rest.


Special Considerations for Different Dietary Needs


Different dietary needs require tailored nutrition strategies. Vegan and vegetarian runners should focus on plant-based protein sources like beans, lentils, tofu, and quinoa. Gluten-free diets require careful selection of grains and carbohydrate sources, such as rice, potatoes, and gluten-free bread. Those with allergies and intolerances should ensure they avoid trigger foods and find suitable alternatives to maintain a balanced diet.


For vegan and vegetarian runners, it’s important to ensure adequate intake of essential nutrients such as iron, vitamin B12, and omega-3 fatty acids. Consider incorporating fortified foods or supplements if needed. Gluten-free runners should focus on naturally gluten-free carbohydrate sources and be cautious of cross-contamination. Individuals with allergies should have a clear plan in place to avoid trigger foods and carry any necessary medications.


Nutritional Strategies for Back-to-Back Races


For runners participating in back-to-back races, recovery nutrition becomes crucial. Focus on replenishing glycogen stores with high-carb meals immediately after the race, and include protein for muscle repair. Hydration is equally important, so continue to drink water and electrolyte solutions. Preparing for the next race involves planning meals and snacks that are easy to digest and nutrient-dense to support recovery and performance.


Effective recovery nutrition includes consuming a high-carb, moderate-protein meal within 30 minutes of finishing the race. This approach helps to replenish glycogen stores and kickstart muscle recovery. Continue to hydrate with water and electrolyte drinks to restore fluid balance. Plan for light, easily digestible meals and snacks in the hours following the race to support ongoing recovery and preparation for the next event.


Long-Term Nutritional Planning


Building a sustainable nutrition plan involves considering the long-term needs of your body. This includes adjusting your diet based on the training season and incorporating periodization in nutrition, where you vary your intake of macronutrients and calories based on the intensity and volume of your training. A balanced approach ensures you remain fueled and healthy throughout the training cycle.


Long-term nutritional planning requires a holistic approach that takes into account your overall lifestyle, training schedule, and personal preferences. Incorporate a variety of nutrient-dense foods into your daily diet to support overall health and performance. Periodize your nutrition by increasing carbohydrate intake during high-intensity training periods and focusing on recovery and maintenance during lower-intensity phases.


Pre-race nutrition is a critical aspect of preparing for an ultramarathon. By understanding the essential nutrients, timing your meals, and avoiding common mistakes, you can optimize your performance and endurance. Incorporating hydration strategies, testing your nutrition plan, and learning from elite runners’ tips will further enhance your preparation. Adapt your nutrition for different race conditions and manage GI issues to ensure a successful race day. With the right approach to pre-race nutrition, you’ll be well-equipped to tackle the challenges of ultramarathon running and achieve your goals.

By planning and executing a well-thought-out pre-race nutrition strategy, you can significantly enhance your endurance, reduce the risk of injuries, and improve your overall performance. Remember to tailor your nutrition plan to your specific needs and preferences, and don't hesitate to consult with a sports nutritionist if you need personalized advice. Good luck with your training and your next ultramarathon!

Sample Meal Planner for Ultramarathon Runners

Creating a detailed and scientifically-backed meal planner can help ultramarathon runners ensure they are getting the right nutrients at the right times. Below is a sample meal planner for the days leading up to an ultramarathon.


Three-Day Meal Planner


Day 1: Carbohydrate Loading

Time Meal Foods Included Nutritional Focus
Breakfast Oatmeal with fruit
Oats, banana, berries, honey
High-carb, moderate protein, low fat
Snack Smoothie
Greek yogurt, spinach, pineapple, flaxseed
Carbs, protein, healthy fats
Lunch
Quinoa salad
Quinoa, chickpeas, cucumber, tomatoes, olive oil, lemon juice
Balanced carbs, protein, healthy fats
Snack Apple with almond butter
Apple, almond butter
Carbs, protein, healthy fats
Dinner Whole grain pasta
Whole grain pasta, marinara sauce, grilled chicken, vegetables

High-carb, moderate protein, low fat

Day 2: Balanced Intake

Time Meal Foods Included Nutritional Focus
Breakfast Whole grain toast
Whole grain bread, avocado, poached eggs
Balanced carbs, protein, healthy fats
Snack Trail mix
Mixed nuts, dried fruit, dark chocolate
Carbs, healthy fats
Lunch
Brown rice bowl

Brown rice, black beans, grilled vegetables, salsa
Balanced carbs, protein, healthy fats
Snack Greek yogurt with honey
Greek yogurt, honey, chia seeds
Protein, carbs
Dinner Baked salmon with quinoa
Baked salmon, quinoa, steamed broccoli

Balanced protein, carbs, healthy fats

Day 3: Final Preparation

Time Meal Foods Included Nutritional Focus
Breakfast Smoothie bowl
Smoothie with spinach, berries, protein powder, granola
Carbs, protein, vitamins
Snack Banana and peanut butter
Banana, peanut butter
Carbs, healthy fats
Lunch
Turkey Sandwich
Whole grain bread, turkey breast, lettuce, tomato, mustard
Balanced carbs, protein
Snack Carrot sticks with hummus
Carrot sticks, hummus
Carbs, protein, fiber
Dinner Sweet potato and chicken
Baked sweet potato, grilled chicken, mixed greens salad
High-carb, moderate protein
Pre-Bed Warm milk with honey
Low-fat milk, honey
Light carbs, helps with sleep

Race Day: Pre-Race Fueling

Time Meal Foods Included Nutritional Focus
Breakfast Whole grain toast with jam Whole grain toast, fruit jam, a small banana Quick-digesting carbs
Snack Energy gel Energy gel, small sip of water Quick energy
Hydration Water with electrolytes Water, electrolyte tablets Hydration and electrolyte balance


Tips for Meal Planning


  • Consistency: Stick to foods you have tested during training to avoid any surprises on race day.
  • Variety: Incorporate a variety of foods to ensure a broad spectrum of nutrients.
  • Timing: Plan meals and snacks to align with your training and race schedule to optimize energy levels and digestion.

The Final Word


Pre-race nutrition is a critical aspect of preparing for an ultramarathon. By understanding the essential nutrients, timing your meals, and avoiding common mistakes, you can optimize your performance and endurance. Incorporating hydration strategies, testing your nutrition plan, and learning from elite runners’ tips will further enhance your preparation. Adapt your nutrition for different race conditions and manage GI issues to ensure a successful race day. With the right approach to pre-race nutrition, you’ll be well-equipped to tackle the challenges of ultramarathon running and achieve your goals.

By planning and executing a well-thought-out pre-race nutrition strategy, you can significantly enhance your endurance, reduce the risk of injuries, and improve your overall performance. Remember to tailor your nutrition plan to your specific needs and preferences, and don't hesitate to consult with a sports nutritionist if you need personalized advice. Good luck with your training and your next ultramarathon!

FAQ

1. What are the best foods to eat the day before an ultramarathon?

The day before an ultramarathon, focus on high-carb, easily digestible foods to maximize glycogen stores. Examples include:

  • Whole grain pasta with marinara sauce
  • Oatmeal with fruit and honey
  • Brown rice with grilled vegetables and lean protein like chicken or tofu
  • Bananas and other low-fiber fruits
  • Smoothies made with yogurt, fruits, and a touch of honey

2. How much water should I drink before an ultramarathon?

Begin hydrating 2-3 days before the race. Aim to drink at least 3-4 liters of water daily. On race day, drink water regularly, but avoid overhydration. Listen to your body's thirst signals and include electrolyte drinks to maintain balance and prevent hyponatremia.

3. Should I use supplements for pre-race nutrition?

Supplements can fill nutritional gaps but should not replace a balanced diet. Common supplements include:

  • Electrolytes to prevent dehydration and muscle cramps
  • Caffeine to enhance alertness and endurance
  • BCAAs to support muscle recovery
  • Multivitamins to ensure adequate intake of essential vitamins and minerals Always consult with a nutritionist before incorporating supplements into your routine.

4. How do I avoid gastrointestinal issues during an ultramarathon?

To minimize GI issues:

  • Avoid high-fiber and high-fat foods close to race time
  • Stick to familiar, easily digestible foods tested during training
  • Eat smaller, frequent meals leading up to the race
  • Stay hydrated and maintain electrolyte balance If issues arise during the race, slow down, consume small sips of water or electrolyte drinks, and adjust your pace as needed.

5. What should I eat for breakfast on race day?

A good pre-race breakfast includes easily digestible carbs and some protein:

  • Whole grain toast with fruit jam
  • A small banana
  • A smoothie with spinach, berries, and protein powder
  • An energy bar or gel if needed Consume breakfast 2-3 hours before the race to allow for digestion, and drink water or an electrolyte drink to stay hydrated.
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