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 Foods High in Glutathione Dr. Christina Carlyle Natural Ways to Boost Your Glutathione Levels (Without Expensive Supplements) Boost your body's natural detox and immunity with these top glutathione supporting foods! Extra Tip: Exercise, get quality sleep, and reduce processed foods to naturally increase glutathione levels. Follow for more healthy tips,