Stir-fried tofu with onion. Oxalic acid contained in onion and tofu is easy to form calcium oxalate, which hinders the body's intake of calcium. Not only tofu but also onions should not be eaten with other foods with high calcium content.

Stewed dog meat with onion. If onions are eaten with dog meat and pheasants, it is easy to get angry, so people who love fire should eat less or not. Eating stewed dog meat with onion may aggravate the condition of rhinitis patients.

Eating onions is not suitable for drinking honey. Various enzymes in honey will react with some ingredients in onion to produce substances harmful to human body, which may easily lead to diarrhea and gastrointestinal discomfort.

Onions should not be eaten during taking Liuwei Dihuang Pills. Onion and garlic have the effects of activating yang, promoting blood circulation, expelling worms and detoxifying, and have a good therapeutic effect on symptoms such as wind-cold and cold, headache and abdominal pain caused by yin cold. However, in the theory of traditional Chinese medicine, this effect is just offset by the rehmannia root in Liuwei Dihuang Pill, so the combination of the two is a major mistake, and it is not advisable to eat onions during taking Liuwei Dihuang Pill.

Taboos for eating onions

The general population can eat onions, but people with gastrointestinal diseases, especially ulcers, should not eat more.

In addition, onions have a strong stimulating effect on sweat glands, and people with bromhidrosis should be careful to eat them.

People who are physically weak and sweaty should also avoid eating.

Extended data

Nutritional value of onion

Onions are good for health. Onion contains volatile oil and capsaicin with pungent smell, which can dispel the peculiar smell in greasy and heavy dishes such as fishy smell, produce special aroma, stimulate the secretion of digestive juice and increase appetite.

When the volatile capsaicin is excreted through sweat glands, respiratory tract and urinary system, it can slightly stimulate the secretion of related glands, and play the roles of sweating, expectorant and diuresis. Therefore, onion is a common raw material for many dietotherapy treatments for colds.

In fact, compared with green onions, the nutrition of green onion leaves is not bad at all. We often say that the nutrients in different parts of the same vegetable are different, which can be reflected in green onions. In addition to the nutrients contained in onion leaves, many nutrients are better than onion leaves. For example, the contents of vitamin C, carotene, green leaves and magnesium in onion leaves are significantly higher than those in the white part of onion.

People's Daily Online-Four misunderstandings about eating onions: What can't onions be eaten with?