watermelon supplements.
Watermelon: Health Benefits, Risks & Nutrition Facts. Watermelons are mostly water â about 92 percent â but this refreshing fruit is soaked with nutrients. Each juicy bite has significant levels of vitamins A, B6 and C, lots of lycopene, antioxidants and amino acids. There's even a modest amount of potassium. Plus, this quintessential summer snack is fat-free, very low in sodium and has only 40 calories per cup.