Nutrition & Fueling Strategies for Ultra Runners
What Is the Metabolic Efficiency Test? The metabolic efficiency test ultra running athletes use is a laboratory or field-based assessment that measures your body’s ability to burn fat versus carbohydrates…
What Is the Metabolic Efficiency Test? The metabolic efficiency test ultra running athletes use is a laboratory or field-based assessment that measures your body’s ability to burn fat versus carbohydrates…
Understanding Fat Adaptation for Ultra Running Performance Fat adaptation ultra runners seek refers to the metabolic shift where your body becomes more efficient at using fat as fuel during endurance…
You cross the 100-mile finish line dehydrated, depleted, and desperate for recovery. What you drink in the next 24 hours impacts muscle repair, immune function, and how quickly you return…
Hardrock 100, UTMB, and other mountain ultras push runners to 10,000-13,000+ feet where altitude hydration demands change dramatically. At elevation, you lose 50-100% more fluid through increased respiratory water loss…
Badwater, Western States, and other desert ultra marathons push runners into 100°F+ heat where normal nutrition strategies fail catastrophically. Heat acclimation nutrition for ultra running requires doubling fluid intake, tripling…
Taking 1,000mg sodium per hour doesn’t help if you consume it all at once, causing GI distress and poor absorption. Electrolyte replacement timing in ultra marathons—when you take sodium, how…
“Drink before you’re thirsty” and “stay ahead of dehydration” advice has killed more ultra runners than actual dehydration ever has. Over-hydration in ultra marathons—specifically exercise-associated hyponatremia (EAH)—causes confusion, seizures, and…
Commercial sports drinks cost $1.50-3.00 per serving, adding $200-500 annually to your ultra running nutrition budget. Meanwhile, a DIY sports drink recipe delivers identical electrolyte content and carbohydrates for $0.15-0.40…
Maintaining electrolyte balance during a 100-mile race requires orchestrating sodium, potassium, magnesium, and calcium intake across 16-30 hours while your body is in metabolic chaos. Get it wrong and you’re…
Sodium requirements for ultra runners spark more debate than any other nutrition topic. Some runners crush 1,000mg+ salt tablets hourly and finish strong. Others consume minimal sodium and still perform…