A medium-sized watermelon is about 92% water, so it's a great option to keep you hydrated, says Elizabeth Beil, RDN, founder of Elizabeth Beil Nutrition.

一个中等大小的西瓜大约含有 92% 的水， Elizabeth Beil Nutrition 的创始人、RDN 的 Elizabeth Beil 说，因此它是保持水分的绝佳选择。