Clinical TrialHighlightedThe Acute Effects of a Single Dose of Molecular Hydrogen Supplements on Responses to Ergogenic Adjustments during High-Intensity Intermittent Exercise in HumansMHID-6109070PMID: 362356282022NutrientsAhad Abdulkarim D. Alharbi, Noriaki Iwamoto, Naoyuki Ebine, Satoshi Nakae, Tatsuya Hojo, Yoshiyuki FukuokaThis research examined the effects of single-dose molecular hydrogen (H2) supplements on acid-base status and local muscle deoxygenation during rest, high-intensity intermittent training (HIIT) performance, and recovery. Ten healthy, trained subjects in a randomized, double-blind, crossover design received H2-rich calcium powder (HCP) (1500 mg, containing 2.544 µg of H2) or H2-depleted placebo (15