Tag: Ultramarathon fueling

Ultra runners can burn upwards of 8,000 calories or more during a single multi-day event, creating a massive energy deficit that cannot be fully replenished during the race. Therefore, learning how do ultra runners eat is crucial, as their strategy for fueling is just as important as their physical training for covering punishing distances.

Research shows that most ultra runners fail to meet their carbohydrate requirements during races, often consuming significantly less than the recommended 60-90 grams per hour, which directly compromises performance. Learning how to fuel for an ultra marathon properly is therefore one of the most critical aspects of race preparation and success.

Most ultra runners fail to meet carbohydrate requirements during competition, often falling short of optimal intake levels and risking fatigue and compromised performance. Learning how to fuel for a 100 mile run is a meticulously planned process that is fundamental for success, endurance, and preventing gastrointestinal issues.

According to the International Society of Sports Nutrition, consuming 3–6 mg of caffeine per kilogram of body weight can improve endurance performance by 2–4%. For ultramarathoners, understanding how much caffeine is allowed during an ultramarathon is critical for managing fatigue and improving focus in the later stages of a race.