glutathione uses overdose FDA highlights concerns with using dietary ingredient to compound sterile injectables Best Glutathione for Fatty Liver:

however, it simultaneously protects non-cancer cells through an antioxidant mechanism [107,108,109,110]

DOI 10.7554/eLife.03868

A 2017 animal study found that shingles pain may be due to our immune mechanisms changing how our sensory neurons work after being triggered by the reactivation of the varicella-zoster virus

This phenomenon may help explain the obesity paradox, which suggests that, even though people who are obese are at greater risk of developing heart issues, once heart disease develops, individuals with higher BMIs appear to have a lower mortality risk than people with normal BMIs

However, starting in late 2023, the FDA changed its enforcement stance and restricted many commonly used peptides, including BPC-157 and TB-500

Quality glutathione supplements are generally well-tolerated