Research from the Institute for Winterthur Institute of Health Economics in Switzerland Switzerland analyzed Study results of 18 projects that have been published, which was conducted in children than 5,400 cases. Researchers found that Eating dairy products and cereals, iron supplements and other nutrients such as zinc and vitamin. Correlated with an increase in the level of hemoglobin in the blood of children from significantly important. Anemia is a condition where the body produces too few red blood cells. Therefore, the body has less hemoglobin . This condition is mainly caused by insufficient iron intake. The researchers found that a diet supplementation with only iron can help increase hemoglobin levels to be more than the same foods that do not have extra iron. However, milk and cereals fortified foods can increase the level of hemoglobin in the blood vessel than the same foods that iron supplementation.