J Pharmacol Sci 108:22738, PMID: 19008644 Lertratanangkoon K, Wu CJ, Savaraj N, Thomas ML (1997) Alterations of DNA methylation by glutathione depletion
[DOI] [PubMed] [Google Scholar] Outeiral C
Vitamin B12 kommt natrlicherweise in tierischen Lebensmitteln wie Fleisch, Fisch, Eiern und Milchprodukten vor

Food Sources of Glutathione Sulfur-Rich Vegetables Research indicates that certain vegetables from the Brassicaceae family contain naturally occurring glutathione and compounds that may support the body's glutathione synthesis: Cruciferous Vegetables: Broccoli: Studies suggest fresh broccoli contains approximately 8-12 mg of glutathione per 100 grams Brussels sprouts: Research indicates these vegetables provide glutathione along with sulfur-containing compounds Cabbage: Both raw and lightly cooked cabbage are sources of naturally occurring glutathione Cauliflower: Contains glutathione and precursor compounds according to nutritional analyses Allium Vegetables: Garlic: Research suggests garlic contains glutathione and may support the body's natural antioxidant systems Onions: Studies indicate onions provide glutathione and sulfur compounds Shallots: Similar to other allium vegetables, shallots contain naturally occurring glutathione Individual dietary needs vary

10.1016/j.expneurol.2013.06.026 21 DisdierC.StonestreetB
But heres the reality: There is no strong human evidence that BPC-157 works Its long-term safety is unknown Its not legally approved for human use It may be harmful in ways we dont yet fully understand As a sports medicine doctor, I dont recommend it to my patients