Tomatoes
Water content: 94.5%
Sliced and diced tomatoes will always be a mainstay of salads, sauces, and sandwiches, but don’t forget about sweet cherry and grape varieties, which make an excellent hydrating snack, nutritionists explain. “They’re great to just pop in your mouth, maybe with some nuts or some low-sodium cheese,” she says. “You get this great explosion of flavor when you bite into them.”