The fruit contains 30 grams of sugar.

Different varieties of watermelon have slightly different sugar content. Generally speaking, the sugar content of watermelon is about 6%. 100 grams of watermelon contains about 6 grams of sugar, so a pound of watermelon is 500 grams, the sugar content should be 30 grams.

The sugars in watermelon include glucose, fructose and sucrose. The sweetness increases with the increase of sucrose in the later stages of ripening. Watermelon contains a lot of malic acid, tomato, vitamin C, etc. Watermelon has significant diuretic and laxative effects. Watermelon and its peel can also moisturize the skin and increase skin elasticity. Due to its high sugar content, watermelon should be eaten with caution by diabetics.