"Malnutrition is caused by a deficiency in the intake of nutrients by the cells of the body. A combination of two factors can be responsible.
These are: (i) insufficient intake of proteins, calories, vitamins, and minerals, (ii) frequent infections. Sickness like measles, malaria, diarrhea (frequent stooling) and respiratory disorder cause loss of nutrients in the body. They reduce appetite and food intake, contributing invariably to malnutrition.
Children suffer malnutrition most because they are in a period of rapid growth that increases the demand for calories and proteins.
UNICEF said that a deficiency of vitamin A affects over 100 million small children in the world and causes blindness. It also weakens the immune system, making them vulnerable to infections. For children who survive malnutrition, the consequences can follow into adulthood.
"The depletion of human intelligence on such a scale - for reasons that are almost entirely preventable is a profligate, even criminal, waste," UNICEF stated.
It added that, "more than 3/4 (three quarters) of all the malnutrition-aided deaths are linked not to severe malnutrition but to mild and moderate forms.""