The content of water inside the human body nearly takes up 72% of the tissue fluid. If the amount of water inside the human body is reduced, the skin problems like dryness will be caused. In addition, the skin can lose the elasticity and the wrinkles may appear. In order to maintain a right amount of water inside the body, people have to drink nearly 1200 milliliters of water every day. The foods containing abundant Vitamin E can effectively help people maintain the moisture and elasticity of the skin. 

Vitamin E plays an important role in resisting the skin aging and keeping the skin fine and smooth. Vitamin E can destroy the liveness of free radicals and remove these free radicals from the human body so as to resist aging. Many kinds of food contain vitamin E, like cabbage, sunflower seed oil and colza oil. Some people may be a little choosy in food. In order to supplement vitamin E, people can choose to take some vitamin E tablets in everyday life.

Except vitamin E, should also be supplemented. In order to make the skin elastic and smooth, it is important to maintain the blood inside the human body sufficient. Iron is one of important components of haem in the blood. Therefore, to supplement iron is the key to enrich the blood and improve the rough skin. Foods like animal livers, egg yolks, kelp and laver all contain a lot of iron. At the same time, the intake of and elastin should also be increased. Collagen can enrich the cells and reduce the wrinkles for people to make the skin smooth and elastic, and elastin can enhance the elasticity of the skin and further improve the rough skin for people. Abundant collagen and elastin are contained in pig’s feet, pigskin and many other kinds of food.

Therefore, it is important for people to supplement vitamin E, iron and collagen in everyday life in order to improve the rough skin. At the same time, people should increase the intake of alkaline food. The food like fish, meat, eggs and cereal belongs to acid food. The excessive of acid food can increase the amount of lactic acid and uric acid inside the human body. The direct result is to make the skin lose its elasticity and smoothness. Alkaline food like apples, pears and vegetables can help people improve the skin.