Watermelon isn't just a refreshing treat. When it's ripe, it's also got plenty of an antioxidant called glutathione. It strengthens the immune system, so it can fight infection. https: wb.md 44VWazS Watermelon isn't just a refreshing treat. When it's ripe, it's also got plenty of an antioxidant called glutathione. It strengthens the immune system, so it can fight infection. https: wb.md 44VWazS Watermelon's Benefits Watermelon Board 15 Effective Foods to Boost Glutathione Levels Naturally Watermelon When eaten on an empty stomach, it hydrates the body, supports skin health, and helps flush out toxins. Its high water content, vitamin C, and lycopene work together to 3 Beneficial Fruits to Improve Egg Quality