Watermelon contains a fairly high amount of citric acid. Consuming watermelon at night can increase stomach acid production, which can cause discomfort such as heartburn, especially for those who are susceptible to stomach problems. This can also increase the risk of more serious stomach acid problems, you know.

This fruit has a high water content, which can have a diuretic effect on the body. As a result, consuming watermelon at night can increase the frequency of urination, which can disrupt sleep quality and cause frequent waking up at night.

Although watermelon contains important fiber for digestion, consuming it in the evening can be a burden on the digestive system that is resting. Heavy food digestion in the evening is prone to disrupting sleep and causing discomfort in the stomach.

Watermelon has a high glycemic index, which means it can cause a spike in blood sugar after consumption. Blood sugar spikes are one of the serious health problems that should not be ignored.

Watermelon is indeed low in calories, consuming fruits too close to bedtime can increase the risk of weight gain. This is because of the natural sugar content in watermelon, if not used as a source of energy, it will be stored as fat and cause significant weight gain. Source: Fimela.com.