Watermelon sugar is relatively high, pregnant women can eat watermelon properly without abnormalities, pregnant women with gestational diabetes need to avoid eating watermelon. Watermelon contains sugar, vitamin A, phosphorus, potassium and other nutrients, does not contain fat, cholesterol, calories are not particularly high, moderate consumption can be supplemented with nutrients and water needed by the human body to enhance the sense of satiety. Pregnant women can eat some watermelon in small quantities if there is no abnormality in all aspects of their body. If you have gestational diabetes during pregnancy, you should try not to eat watermelon with high sugar content, as the fructose and glucose in watermelon are easily absorbed by the body, thus causing an increase in blood sugar, which is not conducive to blood sugar control.