Early summer to help children fight off flu

Into the early summer, big temperature difference between day and night, a little inattentive, the children are likely to catch cold cold. Experts believe that a reasonable intake of the four elements of the child is a physical and a good way to effective prevention.

Food rich in vitamin A
Abuse scientists, the lack of VA in children susceptible to respiratory tract infection is a major incentive. Researchers on the study of 140 cases of child death results to the conclusion that: in the cold and other respiratory infections season high, to the children of the VA-rich food, will enable the child mortality rate by three quarters. VA scientists believe that the United States by enhancing the body immune system is to obtain the effect of anti-infective. In addition, VA can reduce the risk of measles and mortality.
VA-rich foods are carrots, amaranth, spinach, pumpkin, red and yellow fruits, animal liver, milk, etc., if necessary, oral formulations VA, infant 1500-3000 units per day, older children 3000-5000 units per day.
Zinc-rich food
Studies have shown that many viruses Zinc "nemesis." U.S. scientists using zinc inhibition of HIV has been initial success, the experts of influenza treatment with zinc has been made with good results. High incidence of flu season in the multi-eat foods rich in zinc help the body resist common cold virus, the mechanism is:
1, Zinc can directly inhibit the proliferation of viruses;
2, zinc enhance cellular immune function, especially the function of phagocytes. Meat, seafood and poultry are the richest zinc.
In addition, a variety of beans, nuts, seeds and a variety of categories is zinc good food choices.
Food rich in vitamin C
VC to food protein contained in cystine reduced to cysteine, homocysteine is an important force in human immune antibody synthesis --- a member of the necessary material, so VC indirectly promote antibody synthesis, enhanced immune role. VC trial abroad was 3 grams per day of oral flu prevention, but also prove to the children eat the appropriate number of VC-rich food is a prevention-effective. All kinds of fresh fruits and green leafy vegetables are good foods to add VC.
Iron-rich food
The study found that lack of iron the body can be caused by T-lymphocytes and B-lymphocytes to generate damage, the quantity and quality of performance for the decline in phagocytic cell function weakened, reducing the number of natural killer cells, such as changes in immune function. The iron-rich food the body can not conducive to the above-mentioned changes in disease resistance have been corrected, return to normal, to the purpose to combat influenza infection. 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 the other is too much iron storage in the body, may have contribute to bacterial growth and the proliferation of defects.