Effects of Two Novel Hydration Beverage Formulas on Rehydration in Adults

The electrolyte test products are composed of powder and provided in individual stick packs with 5 vitamins including Vitamins B3, B5, B6, B12 and Vitamin C. The products are gluten-, soy-, and dairy-free, and provide electrolytes at concentrations well below the daily value (DV). The DV tells us how much a particular nutrient in a serving of a food product contributes to a daily diet, based on a standard 2000 calorie diet. Despite what the name suggests, this product is taken orally, not intravenously. These packets contain a small percentage of the needed total daily electrolytes but adequate amounts to replace lost electrolytes as a result of physical activity. The products will be consumed following a 90-minute bout of cycling exercise at a moderate intensity of 70-80% max heart rate, at 30-32°C (86-89°F) and 50 ± 5% relative humidity. This same exercise duration and room temperature has been used in a recent study, which also utilized the same body temperature monitoring device as proposed in the present study. The purpose of the exercise bout is to simulate what many individuals are exposed to when exercising in the heat and to moderately dehydrate subjects, as would be the case during a moderate run or cycling event in exercise-trained individuals. Subjects will report to the lab on three separate occasions to consume one of the 3 drinks (hydration multiplier, sugar-free hydration matrix, or water), in random order. The drinks will be consumed during the post-exercise period (30 minutes following the completion of exercise).