Purple onions contain even more antioxidants than white onions for stronger cancer prevention. Quercetin and allicin in onions have been shown to help reduce inflammation, favoring cancer prevention and treatment. The purple-skinned part of the purple-skinned onion contains more quercetin, which is also a very useful health component for the body. Therefore, purple-skinned onions are much more therapeutic than white-skinned onions.

Onion, also known as onion, as a vegetable has a history of more than 5000 years, onions are rich in calcium, phosphorus, iron, vitamin B1, vitamin C, carotene, niacin, prostaglandin A, diallyldisulfide and sulfur amino acids and other ingredients, which have the effect of lowering blood lipids and blood pressure of the sulfur amino acids, prostaglandin A has a vasodilating, lower blood viscosity, prevention of blood clots. The effect. Onion is also rich in trace elements selenium, can reduce the incidence of cancer. General adults eat 50-80 grams of raw onions daily health effects are very significant, it is worthy of the "Queen of vegetables".