Nutritional composition of the hollow cabbage has vitamin A, niacin, protein, which has a heat detoxification, laxative anti-cancer, moisturizing and cosmetic effects, suitable for the crowd including patients suffering from diabetes, high cholesterol, high blood fat. In general, the reason for the emergence of leg and foot cramps, mainly due to lack of calcium, labor and cold or nerve compression, eat hollow cabbage will not cause leg and foot cramps. If there are leg and foot cramps, you need to go to the hospital as soon as possible to do a blood calcium level check. When cramps occur, you can use a hot towel to apply warm compresses to relieve muscle tension and reduce the symptoms of cramps. Usually do not stand for a long time, avoid excessive walking, eat more food with high calcium content, such as milk, soy products, etc., and actively treat rheumatism and rheumatoid arthritis. At the same time, when choosing the hollow cabbage, be sure to choose fresh to eat.