Eating raw vegetables can retain the nutrition in vegetables to the maximum extent, and has the function of preventing cancer and many diseases. Only raw vegetables can play its role. Therefore, nutrition researchers believe that all vegetables that can be eaten raw are best eaten raw; Don't fry vegetables that can't be eaten raw, and try to reduce the loss of vitamins. For example, the skin of cucumber has a high content of vitamin A. It's a pity that some people throw away most of vitamin A in order to be clean and not eat skin. Most people don't eat leaves when eating celery, but leaves contain more calcium, iron, potassium, vitamin A and vitamin C, so everyone should eat them together. Persimmon peppers should be eaten raw because they are rich in vitamin C.