1, bean curd can not eat raw. Bean curd and other legume vegetables, contain saponin and plant agglutinin, these two substances on the gastrointestinal mucosa has a strong stimulating effect, and the cells have a destructive and hemolytic effect, severe hemorrhagic inflammation will also occur. These two poisonous substances are not heat-resistant, and after sufficient heating, the toxic substances can be destroyed. The main method of preventing bean poisoning is to fry the bean thoroughly cooked, cooked, and then eat, with a large pot of processing bean more attention to stir fry evenly, cooked and stewed through, so that the beans lose the original raw green and soy flavor.

2, a lot of beans and vegetables contain a protein that can make red blood cells agglutination, called phytoagglutinin, referred to as agglutinin. Raw eating bean food containing lectin will cause nausea, vomiting and other symptoms, or fatal. However, lectins can be destroyed when heated, so beans, lentils and string beans are not to be eaten raw. However, peas do not contain this erythrocyte lectin and can be eaten raw. Avoid eating beans raw when you can't tell the difference.

3, common legume vegetables suitable for raw food are peas and its variants of Dutch beans and sweet peas. Cooking and heating of vegetables does cause some nutrient losses, such as vitamin C, B vitamins and so on. The percentage of loss will vary with different cooking treatments.