What is the value of watermelon? What is the value of watermelon?

Watermelon is a very good fruit, so what is the value of watermelon? Today I will introduce to you the nutritional value and medicinal value of watermelon, as well as how to choose watermelon:

Watermelon Nutrition

Watermelon is a major fruit in my country and is grown in all parts of the country. The only difference is the name, shape, taste and season of sale. Watermelon contains more water than any other fruit, accounting for about 90% of the whole fruit. The sugar content of the pulp is generally 7% to 11%, mainly fructose. In addition, it also contains vitamins, proteins, pectin, crude fiber, calcium, phosphorus, iron, carotene, etc. It is rich in nutrition, sweet and delicious, and is a good summer fruit for cooling off and quenching thirst.

■Medicinal uses of watermelon

According to traditional Chinese medicine, watermelon is cold in nature and sweet in taste. It has the effects of clearing away heat and relieving summer heat, relieving restlessness and thirst, relieving qi in the middle and lower parts of the body, and promoting urination. It has an auxiliary therapeutic effect on heat-related diseases such as burns, throat paralysis, mouth diseases, and short and red urine. In recent years, it has been found that watermelon also has the following effects:

Treatment of cardiovascular disease: The sugar, protein and trace salt contained in watermelon juice can lower blood lipids and soften blood vessels, which is effective in the treatment of cardiovascular disease.

Improve nutrition for kidney patients: The protease contained in watermelon juice can convert insoluble protein into soluble protein, thereby increasing the nutrition of nephritis patients. Therefore, watermelon is a good medicine for kidney patients, but it should not be consumed in excess.

Enhance male function: American scientists have found that watermelon contains a large amount of citrulline. Pharmacologists believe that this natural amino acid has similar pharmacological effects to "Viagra" (chemical name is sildenafil citrate). After the citrulline in genuine Viagra enters the human body, it can also increase the amount of blood flowing into the corpus cavernosum of the penis and promote the release of nitric oxide in the blood vessels. In comparison, Viagra takes effect quickly, but has certain side effects on the human body, while "natural Viagra" watermelon takes effect slowly, but has no side effects. However, you have to eat 3 watermelons to achieve the effect of taking 1 "Viagra".

■How to choose watermelon in summer

How can you buy a red and sweet watermelon? The key is to understand the ripeness of the watermelon. There are three main points to pay attention to when choosing watermelons: First, look at the shape, identify the skin color, stem and navel of the watermelon. If the watermelon is in a regular shape, the skin is hard and full, the pattern is clear, the skin has slightly uneven waves, the stem and navel are tightly closed and slightly retracted, and the skin color close to the ground turns yellow, it is a sign of being ripe enough; second, listen to the sound, you can hold the watermelon in one hand and tap it with your fingers in the other hand. If the sound is hard and crisp, such as the "dong dong" sound of hitting a wooden board, it is a symbol of being unripe; the sound is similar to the sound of drums and has vibration transmission, it is a sign of being ripe enough; third, the weight, the raw watermelon has a lot of water content and the body is heavier; the ripe watermelon is lighter than the raw watermelon because the flesh is fine and crisp and the tissue is loose. In addition, it should be noted that if the skin of the watermelon is soft and dark, the knocking sound is too heavy, the body of the watermelon is too light, or even the sound is heard when the watermelon is shaken, it may be a rotten watermelon and cannot be eaten.