Top Glutathione Alternatives: Ways to Boost Antioxidants Xandro Lab Below are my top tips for boosting glutathione levels. Eat sulfur rich foods. Glutathione contains a sulfur chemical group, which is kind of like its secret weapon. Sulfur is a sticky, smelly molecule 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 Your Complete Guide to Glutathione Schoenwalder Health & Wellness Glutathione Foods: 10 Natural Ways To Increase Glutathione Level Plix