Renowned Sports Dietitian Nancy Clark Exposes the Hidden Culprits Behind Multi-Day Hiking Nutrition

NEWTON, Mass. - May 21, 2026 - PRLog -- Sports Dietitian Nancy Clark Exposes Hidden Causes of Multi-Day Hiking Nutrition Failures

A new guide breaks down "palate fatigue" and "gut rot," revealing why standard trail nutrition fails on multi-day treks and how to fix it.

IJMUIDEN, Netherlands – May 21, 2026 – Countless hikers tackle multi-day trails equipped with premium gear and specialized sports food, only to physically crash and suffer severe nausea by day three. A new guide featuring exclusive insights from internationally respected sports nutritionist and best-selling author Nancy Clark, MS, RD, CSSD, tackles this industry-wide blind spot.

The publication dismantles the myths of single-day hiking nutrition, exposing two physiological roadblocks that derail longer expeditions:

• Palate Fatigue: When the brain and mouth actively reject repetitive foods, causing hikers to skip meals rather than stomach another sugary energy gel.
• Gut Rot: Severe gastrointestinal distress often triggered by high-fiber protein bars, artificial sugar alcohols, or forcing an untrained gut to process unfamiliar foods at altitude.

"You can only complete an event at your best if you train at your best," says Clark. "Every day of training, you're actually training your intestinal tract to accept the amount of fuel that will be required of you."

To combat these trip-ending conditions, the release outlines an evidence-based pre-trip routine. It requires hikers to practice eating during training sessions, test all meals before hitting the trail, build a consistent daily carbohydrate habit, and utilize natural whole-food fiber.

The guide also warns of severe caloric under-packing. While a standard day hike requires roughly 3,000 calories, multi-day backpacking at altitude can demand up to 8,000 calories daily. Clark advises abandoning expensive protein supplements in favor of calorie-dense carbohydrates—validating chocolate as essential trail fuel and simple chocolate milk as the ultimate recovery drink.

For the complete article, check out: https://outdooradept.com/multi-day-hiking-nutrition/

For a deeper dive into expedition fueling strategies, readers are encouraged to reference Nancy Clark's Sports Nutrition Guidebook (6th edition).

About Nancy Clark, MS, RD, CSSD: Nancy Clark is an internationally respected sports nutritionist, weight coach, and nutrition author. She is a Fellow of the Academy of Nutrition and Dietetics and the American College of Sports Medicine. Her acclaimed book, Nancy Clark's Sports Nutrition Guidebook, has long been considered the premier resource for sports fueling. https://nancyclarkrd.com/product/sports-nutrition-guidebo...