According to Nutrients, watermelon is a food with a very high water content, accounting for about 90%. Thanks to this characteristic, when you eat watermelon, the body will be effectively hydrated, thereby supporting kidney function.
Watermelon provides many vitamins and minerals such as potassium, vitamin A, vitamin C and fiber. These nutrients play an important role in maintaining the normal function of the excretory system, including the kidneys.
The kidneys are responsible for filtering blood and removing waste through urine. To function effectively, the kidneys need enough water. Therefore, eating watermelon can indirectly support this process.
Watermelon also contains biological compounds such as lycopene and citrulline. These compounds have antioxidant properties and support cardiovascular health. When oxidation is reduced, organs including the kidneys are also less damaged. This is an indirect mechanism to help protect the kidneys in the long term.
For kidneys to function effectively and maintain long-term health, building a scientific lifestyle is necessary. First of all, you need to drink enough water every day to help the kidneys filter and eliminate waste better. The amount of water needs to be suitable for your physical condition, usually about 2-2.5 liters/day, and should be drunk evenly throughout the day instead of drunk at once. Besides filtered water, you can supplement water from fresh fruits, and limit sugary drinks to avoid increasing the burden on the kidneys.
Regular physical activity also plays an important role. Light activities such as walking, cycling or swimming help increase blood circulation, stabilize blood pressure and support cardiovascular health, thereby reducing the risk of kidney damage.
Maintaining a reasonable weight is a necessary factor, because overweight and obesity can increase the risk of diabetes and high blood pressure - the two leading causes of kidney failure.
Controlling stable blood sugar and blood pressure helps reduce pressure on the kidneys during blood filtration. In parallel, it is necessary to limit alcohol and stop smoking because these habits impair kidney function over time.
Finally, periodic health check-ups help detect early kidney abnormalities. Proactive prevention and lifestyle adjustment are key to protecting kidney function sustainably.