glutathione bipolar Microbiota–gut–brain axis mechanisms in the complex network of disorders: potential clinical implications and translational opportunities Reduced Glutathione | Pure Encapsulations

When researchers compared whey hydrolyzed with papain against the body's own stomach enzymes (pepsin and trypsin), papain achieved the highest degree of hydrolysis (33%) after just 3 hours

doi: 10.1038/s41467-023-37368-1 78 SousaGFCarpesRMSilvaCAOPereiraMEPSilvaACVFCoelhoVAGSet al

10.1016/s0928-4257(97)89478-8 6 HuangT.ZhangK.SunL.XueX.ZhangC.ShuZ.et al (2015)

Runners and cyclists who train on the Minuteman Bikeway or spend weekend mornings at Great Meadows National Wildlife Refuge generate real oxidative stress from sustained aerobic effort, and glutathione is one of the antioxidants most directly consumed during that process