Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Watermelon (Citrullus lanatus) has been traditionally used in various cultures to support urinary health. In particular, watermelon is known in folk medicine for its diuretic properties, meaning it may promote the increased production of urine. This traditional use likely stems from watermelon’s high water content—over 90%—which can naturally help to flush the urinary tract and increase urination. Additionally, watermelon contains the amino acid citrulline, which was named after the plant and has been studied for its involvement in nitric oxide production and vasodilation, though its direct impact on urinary health remains unclear.

Despite these traditional applications, robust scientific evidence supporting watermelon as a significant urinary system support agent is limited. Some small studies have observed that watermelon consumption can increase urine output due to its water content, but there is little direct evidence to suggest it has a therapeutic effect in preventing or treating urinary tract infections, kidney stones, or other urinary conditions. Most references in scientific literature cite its hydration and general health properties rather than specific benefits for the urinary system. Therefore, while watermelon’s use for urinary support is rooted in tradition, scientific validation remains modest.

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