1, phytoncide contained in green onions has a strong bactericidal effect, especially on Shigella dysenteriae and dermatophytes. The pectin component contained in green onion can obviously reduce the occurrence of colon cancer and has anti-cancer effect. Allicin in green onion can also inhibit the growth of cancer cells.

2, green onions can prevent respiratory infections, effectively treat colds, once people have symptoms such as sneezing, runny eyes, runny nose, etc., take green onions and chew them until they sweat.

3. Onion is rich in nutritional value, mainly containing protein, fat, sugar, vitamin A, vitamin B, vitamin C, and minerals such as calcium, magnesium, iron and phosphorus, which can supplement various elements needed by human body. It can supplement our nutrition in time.

The disadvantages of eating green onions:

1, Welsh onion is a kind of mild food. Long-term consumption at ordinary times will make the human body absorb too much heat, which will aggravate the heat toxicity in the body. In severe cases, it will cause a variety of symptoms of getting angry, such as sore mouth and throat and facial acne, which are obvious manifestations of getting angry after eating raw Welsh onion.

2. Onion is a spicy and stimulating ingredient. If you eat it raw for a long time, it will make your stomach absorb too much allicin, which will hurt your gastric mucosa, especially those with weak spleen and stomach and gastric insufficiency, and you can't eat it raw for a long time, otherwise it will hurt your spleen and stomach, which is not good for your health.

3. Eating green onions raw for a long time is also very bad for human eyes, especially in summer. Eating green onions raw will make people's eyes secrete some white things, which will make people's eyes obviously uncomfortable, and in severe cases, their vision will decline.

Extended data:

These people are not suitable for eating green onions raw.

1, people with oral ulcers should stop eating.

2. People suffering from gastrointestinal diseases, especially peptic ulcer, should not eat more.

3, superficial deficiency, hyperhidrosis should also avoid eating.

4, allergic patients carefully choose.

5, onion has a strong stimulating effect on sweat glands, and people with underarm odor should eat carefully in summer.

References:

The efficacy and taboo of green onions-People's Network