Watermelon
Water content: 91.5% water
It’s fairly obvious that watermelon is full of, well, water, but this juicy melon is also among the richest sources of lycopene, a cancer-fighting antioxidant found in red fruits and vegetables. In fact, watermelon contains more lycopene than raw tomatoesabout 12 milligrams per wedge, versus 3 milligrams per medium-sized tomato.