Welcome to your daily hub Today we discuss a scientific study evaluating the effects of different carbohydrate (CHO) ingestion rates on elite male marathon runners during simulated running. The study compared the metabolic effects of consuming 60, 90, and 120 grams of CHO per hour, using stable isotope tracers to measure exogenous CHO oxidation and whole-body substrate metabolism. Researchers found that the highest rate of 120 g·h⁻¹ resulted in significantly greater whole-body and exogenous...