Because glutathione levels decline as you age, and glycine can help slow the glutathione slide, it's a good idea to keep your levels high by eating protein rich foods, like organic poultry, grass fed Which foods are highest in glutathione ? What do you guys think of doing these 2 peptides together? What To Avoid When Taking Glutathione In 2026 Can I take Insulin like Growth Factor 1 Long R3 (IGF 1LR3) with Type 1 Diabetes Mellitus (T1DM)?