Glutathione is known as the master antioxidant. This critical compound protects cells from damage caused by free radicals and toxins, supports detoxification, plays a key role in DNA synthesis and repair, Foods With L Glutathione: Avocado, Watermelon, and More GoodRx Foods With L Glutathione: Avocado, Watermelon, and More GoodRx Vibrant Glutathione contains sulfur molecules, which may be why foods high in sulfur help to boost its natural production in the body. These foods include: cruciferous vegetables, such as broccoli,