First, the possibility of taking folic acid before pregnancy?

Into the early summer, big temperature difference between day and night, a little inattentive, the children are likely to catch cold cold. The experts recommend a diet is both reasonable and consistent with children's physical benefits there are a good way to prevent diseases.

 

　　Foods rich in vitamin A,

　　Children scientists, winter-spring season, the lack of VA in children prone to respiratory tract infection is a major incentive. Study of 140 deaths in children, the study results concluded that: In the cold and other respiratory infectious diseases, high season for children increase the VA-rich foods, can reduce child mortality by three quarters. U.S. scientists believe that VA is achieved by enhancing the body's immune system to anti-infective effect. In addition, VA can reduce the risk of measles disease and mortality. VA-rich foods are carrots, amaranth, spinach, pumpkin, red and yellow fruits, animal liver, milk and so on, if necessary, can be taken orally VA preparations, baby 1,500-3,000 units per day, older children 3,000-5,000 units per day.

 

　　Zinc-rich foods

Studies have shown that zinc is that many viruses, "nemesis." U.S. scientists have used zinc inhibition of HIV has been initial success, the experts zinc in the treatment of influenza has achieved good results. In the cold season, eat more high-fat foods rich in zinc help the body resist common cold virus, the mechanism is:

⑴ zinc can directly inhibit viral proliferation;

⑵ of zinc to enhance cellular immune function, especially in phagocytic cell function. Meat, seafood and poultry, the most abundant zinc.

In addition, various beans, nuts, and a variety of seed types is also a better zinc foods, providing an alternative.

 

　　Foods rich in vitamin C

VC can food protein contained in the reduction of cystine into cysteine, cysteine is an important member of the body's immune army --- the material necessary for the synthesis of antibodies, it has an indirect VC promote antibody synthesis, enhance immune role. Abroad there have been three grams per day of oral VC trial to prevent colds, but also to prove to their children eat properly VC-rich foods are effective disease prevention. Various kinds of fresh fruits and green leafy vegetables and a variety of good food to supplement the VC.

 

　　Iron-rich foods

The study found that a lack of iron the body can cause T-lymphocytes and B-lymphocytes produce damage, expressed as the quantity and quality decline in phagocytic cell function weakened, the decrease in the number of natural killer cell immune function changes. The iron-rich foods can not conducive to the above-mentioned changes in body resistance to diseases to be corrected, return to normal, to combat influenza infection purposes. Such foods are animal blood, milk, eggs, spinach, meat and so on. But too much should not be blindly partial eclipse, in particular, is an iron-fortified foods, first, to avoid undermining the balance between trace elements and lower zinc and copper absorption rate, and second, too much iron stored in the body, may have contribute to bacterial growth and proliferation of the state.