Synopsis

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

Watermelon (Citrullus lanatus) is sometimes associated with prostate health primarily due to its high content of the amino acid citrulline and the antioxidant lycopene. Lycopene, a carotenoid pigment that gives watermelon its red color, has been studied for its potential protective effects against prostate cancer. Some observational studies have found that higher dietary intake of lycopene is linked with a reduced risk of prostate cancer, although results are mixed and not definitive. Watermelon is one of several fruits (along with tomatoes and pink grapefruit) that contain significant amounts of lycopene.

In addition, L-citrulline in watermelon is converted into L-arginine in the body, which can help with blood flow and potentially support erectile function, an issue related to prostate health. However, there is no direct evidence that citrulline or watermelon consumption specifically improves prostate health or treats prostate conditions such as benign prostatic hyperplasia (BPH) or prostate cancer.

Overall, while there is some scientific rationale and limited epidemiological evidence supporting the inclusion of watermelon in a diet for general prostate health, the direct effect is unproven. Thus, the scientific evidence is modest (rated 2 out of 5), and watermelon should not be considered a primary therapeutic agent for prostate health but rather a part of a healthy, balanced diet.

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