Antioxidant and Antiproliferative Activities of Several Garlic Forms Garlic: Usefulness and Safety NCCIH 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 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 What Is Glutathione? Health Benefits, Risks, and More Garlic: An Exploration of Allicin, Nutrition Therapy Institute