Watermelon is sweet and cool, clearing away heat and toxic materials, relieving annoyance and quenching thirst, has diuretic effect and rich nutrition. It is a good food to cool off summer heat and will definitely not cause excessive internal heat.

Watermelon contains a lot of citrulline. Pharmacologists believe that this natural amino acid has similar pharmacological effects to Viagra (chemical name is sildenafil citrate).

Among all melons and fruits, watermelon contains the most abundant juice, with a water content of over 96%. Watermelon juice is rich in malic acid, glutamic acid, arginine, glucose, fructose, lycine, carotene, vitamins A, B, C, protein and minerals such as calcium, phosphorus and iron, which are beneficial to human health and easily absorbed by people. Chinese medicine believes that watermelon is sweet and cold in nature, and has the functions of clearing away heat and relieving summer heat, diuresis and relieving annoyance.

Interestingly, American scientists have found that watermelon can also replace Viagra. People with sexual dysfunction may wish to eat more watermelons. It turns out that watermelon contains a lot of citrulline, and pharmacologists believe that this natural amino acid has similar pharmacological effects as Viagra (chemical name is sildenafil citrate). Citrulline can also increase the amount of blood flowing into the corpus cavernosum and promote the release of nitric oxide from blood vessels. Although the drug Viagra takes effect quickly, it can have some side effects on human body, while "natural Viagra" takes effect slowly, but it has no side effects. However, it takes three watermelons to achieve the effect of taking a viagra.

Matters needing attention in eating watermelon

Although watermelon is delicious, it is not suitable for everyone. People with renal insufficiency should not eat more, so as not to increase the burden on the kidneys. Watermelon polysaccharide, diabetes patients should not eat more. Middle-aged and elderly people with weak spleen and stomach, severe cold and dampness, and children with underdeveloped gastrointestinal function must not be greedy for a quick time and eat too much to damage the spleen and stomach.