Watermelon in addition to fat-free, the juice includes almost all the nutrients that the human body needs, such as vitamins A, B, C and protein, glucose, sucrose, fructose, malic acid, glutamic acid, citrulline, arginine, phosphoric acid and calcium, iron, phosphorus and crude fiber.

Watermelon is sweet and cold in nature, and has the effect of clearing away heat, quenching thirst and relieving heatstroke, relaxing the middle and upper air, treating paralysis of the throat, facilitating urination, treating bloody diarrhea, and relieving the effects of alcohol poisoning. Suitable for heat stroke fever, heat and fluid injury, boredom and thirst, urine, yellow urine, throat swelling and mouth sores. Acute fever fever, thirst, sweat, irritability, drink fresh watermelon juice, can clear the thirst. Watermelon rind fresh or dried into medicine, sweet taste and coolness, with heat diuretic effect of swelling, can cure urinary incontinence, edema, and jaundice and other diseases of dampness and heat. The green part of the watermelon rind, "watermelon Cuiyi", can treat edema, scald, nephritis and other diseases, with its decoction of tea, but also a very good summer cooling drink.

Modern pharmacological studies believe that the sugar, salt and protease contained in watermelon has the effect of treating nephritis and lowering blood pressure. Watermelon seed kernel also contains an ingredient that can lower blood pressure. Taking 9-15 grams of raw or fried food has a blood pressure-lowering effect and can relieve the symptoms of acute cystitis. The roots and leaves of watermelon are taken internally in decoction soup, which is effective for diarrhea and enteritis. Watermelon rind contains glucose, amino acids, malic acid, lycopene and C and other ingredients, melon rind after drying, can relieve summer heat, anti-inflammatory and antihypertensive, but also reduce cholesterol deposition in the arterial wall.