The most critical factor is:balanced nutrition.Nutrition,immunity,disease is a triangular relationship,balanced nutrition will make you immune system full of vitality,to maximize the protection of organism was not the killer.Balanced nutrition should first of all make daily nutrient intake and type.Daily intake of nutrients should be in 40 above.So the quantity should be how much?According to the Chinese Nutrition Society recommended:less than 6 grams of salt; less than 25 grams of milk fat; 200 grams of 50 grams; beans; eggs fish 150-200 g 400-500 g; vegetables; fruit 100-200 g; starch group 300-500 G.

There are several nutrients on immune system is crucial:

Protein important role is the regulation of immune function.Proteins involved in form in various immune organs,immune cells and molecules; protein to repair disease injury of organs and tissues; proteins involved in various enzyme structure and function,to help the immune system to play a role in.

Vitamin B important role is:the protein in the human body is an important material; vitamin B6 is a protein metabolism,immune system functioning must material; to relieve stress,improve immune function.

Vitamin A can maintain the integrity of the respiratory mucosa,stop the invasion of pathogenic microorganisms,reduce the chance of infection; it still antioxidants,protect the immune system from free radical damage.

Vitamin C collagen,maintain the skin,respiratory tract mucosal integrity and firmness; adequate vitamin C,can help the white cells and antibodies kill invading pathogenic microorganisms.Illness when the body of vitamin C increased demand.

Vitamin E is an antioxidant,vitamin A,vitamin C protection,avoid them from oxidation damage; protective membrane on the unsaturated fatty acid,protect the immune system from free radical damage; can enhance liver detoxification function,improve the body immunity.

The minerals calcium,participate in the formation of collagen,maintain the skin,respiratory tract mucosal integrity and firmness; another is magnesium.Involvement of protein synthesis in vivo; zinc 's role is to ensure that the immune system integrity,promoting vitamin A metabolism and physiological function.

Bioflavonoids are a group of antioxidant substances,can protect the immune system from free radical damage.1 proanthocyanidins ( OPC ) is a powerful antioxidant,grape seed content is highest,also exists in the pink plant.The antioxidant effect is 20 times the vitamin C,vitamin E is 50 times; 2 citrus biotin,from citrus,lemon extract; 3 polyphenols,is found in tea,olive oil,red wine; 4 soy isoflavones,present in certain mushrooms,fungus,with disease resistance,protect the heart,can activation of immune cells,balance the immune system,destroying cancer cells and viruses.