Among all fruits, watermelon contains the most juice, with a water content of over 96%. Watermelon juice is rich in malic acid, glutamic acid, arginine, glucose, fructose, wolfberry alkaloid, carotene, vitamins A, B, C, as well as proteins and minerals like calcium, phosphorus, and iron. These components are highly beneficial to human health and are easily absorbed. Traditional Chinese medicine holds that watermelon is sweet and cold in nature, possessing the effects of clearing heat, relieving summer heat, promoting urination, and eliminating irritability.
Interestingly, American scientists have discovered that watermelon can also have an effect similar to "Viagra." Those with sexual dysfunction might consider eating more watermelon. It turns out that watermelon contains a large amount of citrulline, and pharmacologists believe this natural amino acid has a pharmacological effect similar to that of "Viagra" (its chemical name is Sildenafil Citrate). After entering the body, citrulline can also increase blood flow into the corpus cavernosum of the penis and promote the release of nitric oxide in the blood vessels. However, while Viagra works quickly, it can have certain side effects on the human body. In contrast, the "natural Viagra" may be slower to take effect, but it is absolutely free of side effects. However, you would need to eat three watermelons to achieve the same potency as one dose of Viagra.
However, although watermelon is delicious, it is not suitable for everyone. People with kidney insufficiency should not eat too much to avoid increasing the burden on the kidneys. Watermelon is high in sugar, so diabetics should also avoid excessive consumption. For the elderly with weak spleen and stomach and a strong presence of cold-dampness, and for young children whose gastrointestinal functions are not fully developed, it is crucial not to indulge in the momentary pleasure of eating too much and damaging the spleen and stomach.