Intact glutathione is poorly membrane-permeant and extracellular glutathione is degraded by gamma-glutamyl transpeptidase before its amino acids are reimported (Zhang, Forman and Choi, Methods in Enzymology, 2005), whereas cysteine-delivery agents bypass that step
A study involving a 2-hour swimming protocol in rats revealed that whey HP ingestion induced significantly higher MPS compared to the intact whey protein [189]
Glutathiones primary value is antioxidant and detoxification support
Supplied as lyophilised powder for in-vitro research use only, not a licensed medicine, and no therapeutic, cosmetic or appearance claim is made or implied
Which claims rest on human trials, which rest on rat studies, and what is unsafe
Emerging pharmacotherapies for obesity: A systematic review