2a and Supplementary Table 2)
Foods Rich in Glutathione Precursors Since cysteine availability is the rate-limiting factor for glutathione synthesis, foods rich in cysteine and sulfur-containing amino acids are particularly important [2][9]: High-cysteine protein sources: Whey protein, eggs, chicken, turkey, pork, beef, fish Sulfur-rich vegetables (also activate Nrf2): Broccoli, Brussels sprouts, cauliflower, kale, cabbage, garlic, onions, shallots Glycine-rich foods (collagen sources): Bone broth, gelatin, skin-on chicken, pork rinds Glutamic acid sources: Tomatoes, mushrooms, parmesan cheese, soy sauce, fermented foods Practical Notes Cooking reduces glutathione: Raw fruits and vegetables contain more glutathione than cooked versions
Legal status and obtaining IGF-1 LR3 Understanding the regulatory framework around IGF-1 LR3 matters for anyone considering its use
Ann Neurol 2013
Promotes Fat Metabolism: Encourages the use of fat as an energy source, supporting lean muscle maintenance
It moves repair cells to damaged areas faster, which is why it shows up so often in injury and post-surgical protocols