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What to Eat Before Training: A Guide for Endurance Athletes

Writer's picture: Dana EshelmanDana Eshelman

Getting ready for a training session involves more than just physical preparation. The right pre-training meal can greatly impact your performance. For endurance athletes like triathletes and long-distance runners, nutrition is essential for optimizing energy and stamina. In this guide, we’ll examine effective nutritional strategies to help you fuel up before your workout.


The Importance of Carbohydrates


Carbohydrates serve as the primary energy source for your body during physical activities. For athletes engaged in endurance sports, carbohydrates are vital for sustaining energy levels throughout training. Here are some carbohydrate-rich options to consider before your workout:


  • Bagels

  • Bananas

  • Oatmeal


To enhance your performance, aim for 3-4 grams of carbs per kilogram of body weight three to four hours before training. For example, a 150 lb athlete should target about 200-270 grams of carbohydrates. That could look like two bagels with banana slices or a hearty bowl of oatmeal topped with berries.


Timing Is Everything


The timing of your carbohydrate intake is crucial. Even if you have only 30 minutes before you start training, you can still gain benefits by consuming 0.5 to 1 gram of carbs per kilogram of body weight. For a 150 lb athlete, this amounts to around 34 grams of carbs.


Opt for easily digestible carbohydrates like a piece of fruit or a sports drink. By doing so, you will avoid feeling sluggish during your workout and maintain high energy levels.


Keep Fats to a Minimum


Healthy fats are an important part of a balanced diet but not the best choice for pre-training meals. High-fat foods can result in gastrointestinal (GI) discomfort, making it tough to perform well. Pay attention to how your body responds.


To keep things simple, limit fats in your pre-training meal. Avoid heavy foods like greasy breakfast sandwiches or rich sauces. A piece of toast with almond butter is a better choice than a full-fat muffin.


Low Protein is the Way to Go


While protein is essential for muscle recovery, it’s best saved for after your workout. Most athletes should keep their pre-training protein intake to between 5 and 15 grams. This amount is enough to support your muscles without burdening your digestive system.


Choose lighter protein options, like a cup of yogurt or a small serving of a low-protein smoothie that won’t weigh you down.


Close-up view of a balanced pre-training meal with fruits and carbohydrates
A healthy pre-training meal featuring fruits and bagels.

Hydration Matters


Staying hydrated is a key component of successful training, especially for morning workouts. Aim to drink 10-12 ounces of water before you head out.


A great tip is to combine hydration with your carbohydrate intake. Sports drinks containing electrolytes and sugars can keep you hydrated while providing energy for your muscles during training.


Consider What You Want to Fuel With Race Morning


Practice, practice, practice. Your gut, just like your muscles, needs to be familiar with what you want to do on race day. Establish a consistent routine with foods that you know agree with your stomach and make you feel good in your training. You can choose a part of what you want to do race morning in your pre training routine. For example, if you want to have oatmeal + banana + nut butter + honey + yogurt + 6 oz OJ (~150 grams carbs) in the 3 hours before your race on race morning, this portion may feel like too much before you go our for your training session. Instead, let's pick a portion of that - oatmeal + banana + nut butter - for your training session.


On race day, you don’t want to risk an upset stomach or feel unprepared. Familiarity breeds confidence, which is particularly important in a race setting.


Putting It All Together


Preparing for training means paying attention to the meals you eat. You have all heard that nutrition is a key player in your performance and recovery as an athlete. By focusing on sufficient carbohydrates, timing your intake, reducing fats, and keeping protein low pre-training and racing, you’ll set yourself up for success.


Remember that everyone's body is different. Don’t hesitate to adjust your pre-training nutrition based on your experiences. Experiment with various foods and timing to find the combination that allows you to perform at your highest level.


Fuel fiercely, hydrate well, and make your next training session your best one yet!

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