Vegetables contaminated by pesticides: In order to grow vegetables quickly and well, high-concentration pesticides are used to spray vegetables, and they are put on the market early. Uncooked kidney beans and green beans with blue appearance contain saponins and trypsin inhibitors, which can cause poisoning to human body. Germinated potatoes and green tomatoes contain solanine toxic substances, which will cause poisoning symptoms such as dizziness, vomiting and salivation after eating. Vegetables containing oxalic acid, such as bamboo shoots, water bamboo, spinach, amaranth, water spinach and parsley, contain oxalic acid, which will combine with calcium ions in the body to form calcium oxalate, thus affecting the absorption of calcium. Therefore, this kind of vegetables can not only be eaten raw, but also boiled with boiling water before eating, so that most of the food oxalic acid can be removed.

Bean vegetables, some people like to eat bean vegetables such as cowpea, green bean, pea, lentil, snap bean, snake bean, etc., but these vegetables should not be eaten raw, but must be completely cooked before eating, otherwise it may cause poisoning.

Lettuce, celery, cabbage, radish and other vegetables are suitable for raw eating, but for the sake of gastrointestinal health, it is recommended that you blanch them before eating. It is very particular to choose raw vegetables. Some vegetables are not suitable for raw eating, otherwise they will not be able to supplement nutrition, but will affect your health, so you should pay attention before eating vegetables.