tylenol lowers glutathione reduces Acetaminophen metabolism and NAPQI-mediated mitochondrial effects Headlines about Tylenol and autism – tylenol decreases glutathione Myth-busting, Acetaminophen

Identification of 5-hydroxy eicosatetraenoic acid in cerebrospinal fluid after subarachnoid hemorrhage

Regarding the effects as you mentioned, digestion etc I didn't feel anything special around those

Another study done by Kankofer et al published in the journal Aging clinical and experimental research that in younger years, ovaries have higher intracellular glutathione (GSH) levels

Gill SS et al

By replenishing the cat's B12 levels, the injections may improve their overall nutritional status and enhance their ability to fight off infections

In some areas, glutathione is used as a skin lightener based on the idea that it may shift melanin production from darker eumelanin to lighter pheomelanin