Is onion hot or cold?

Onions are relatively mild food. They contain natural anti-cancer substances. The effects of onions and garlic are similar. They can inhibit the production of cancer cells and promote the function of preventing cancer cells from destroying their functions. The most important thing is that onions contain sugar, but this kind of sugar can lower blood sugar, so even patients with high blood pressure and high blood lipids can still eat onions.

Properties of onions

Family: Liliaceae, Allium

Origin: Native to western Asia, now widely cultivated throughout the world.

Other names: bulb onion, round onion, shallot, shallot, Dutch onion, sweet onion

Introduction:

Onion, also known as bulb onion, round onion, jade onion, shallot, Dutch onion, etc., is a biennial herb. The roots are string-like, with dark green cylindrical hollow leaves with a waxy surface; the leaf sheaths are thick and scaly, densely packed around the shortened stems to form a bulb (commonly known as onions); umbel inflorescences with small white flowers; and capsules. The rhizome is covered with a thin layer of skin (white, yellow or red), and inside are layers of flesh, which is generally white or light yellow.

Nutritional value of onions

1. Onion is a good natural anti-cancer food. Laboratory tests have confirmed that onion is similar to garlic. Both contain "allicin" and selenium sulfide, which can inhibit the synthesis of carcinogenic nitrosamines and promote phagocytes to destroy cancer cells.

2. Onions also contain quercetin and glutathione, which play an important role in preventing and fighting cancer.

3. Onions also contain xanthocyanin, which can help cells better utilize sugar and thus lower blood sugar.

4. Onions contain prostaglandin A, which can dilate blood vessels, reduce peripheral vascular resistance, promote sodium excretion, and lower increased blood pressure. .Onions also contain diallyl sulfide, which can prevent arteriosclerosis and lower blood lipids.

6. Quercetin-like substances can also be detected in onions. The glycosides formed under the induction of flavonols have diuretic and anti-edema effects, which are beneficial for the prevention of obesity, hyperlipidemia, arteriosclerosis and other diseases. This is similar to the Chinese medicine theory that onions have the function of drying dampness and detoxifying.