Antioxidant and Antiproliferative Activities of Several Garlic Forms Garlic: An Exploration of Allicin, Nutrition Therapy Institute Amazon.com: Glutathione Supplement, Pure Glutathione Reduced Powder with Inositol, 5 Ounce (9 Months Supply), 2 in 1 Formula, Powerful Ingredients for Antioxidants, Supports Liver Function, Vegan : Health & Household Some Patients Are Taking Glutathione, Should You? Southern California Integrative Wellness Center Did you know? Garlic is high in sulfur compounds that help increase levels of glutathione. This antioxidant is part of your body's first line of defense against stress. For more details, visit Garlic: Usefulness and Safety NCCIH