Vitamin C is the necessary constituents in intercellular substance. They have functions of transferring hydrogen, detoxification and catalyzing. Lack of vitamin C can make skin rough and dry, cause subcutaneous hemorrhage, gingival bleeding and acne.
Vitamin D has functions of regulating metabolism of calcium and phosphorus, promoting absorption of calcium. It can directly improve the calcification and ossification in skeleton tissues. Lack of vitamin D can cause rachitis.
Vitamin E has a function of anti-oxidation, promoting metabolism, improving cutaneous circulation, maintaining permeability of blood capillary and preventing skin from aging. Lack of Vitamin E can make skin rough and aging.
Iron is the basic ingredient of hemoglobin. It transmits oxygen and carbon dioxide in blood. Thus it is a major constituents of blood. Iron deficiency can cause anemia, make skin pale and dry.
Inorganic salts is a certain amount of mineral substance in human body, such as sodium chloride, Potassium Chloride, sodium bicarbonate etc. Sodium and potassium play a important role in nervous activity and muscular activity. Too little or two much of sodium and potassium will cause muscular relaxation.