Watermelon

Watermelon is a delightful fruit that is low in calories, fat-free, and rich in numerous nutrients. According to Healthline, watermelon has 92% water. The vitamins A, B6, C, and lycopene are in large amounts in each juicy bite, along with antioxidants, amino acids, and anti-inflammatory compounds (opens in new tab). Even a tiny amount of potassium is present in watermelon. Protein is required in almost all of the body's essential processes, and amino acids are its fundamental building block. According to the USDA food database, one serving of watermelon weighs roughly 280g (or about 1/16 of a watermelon). One to two servings of watermelon per day are safe for a healthy adult.