Manual on Vitamin a Deficiency Diseases
Vitamin A deficiency is a common micronutrient deficiency which affects people worldwide.Vitamin A Deficiency Diseases (VADD) is a comprehensive term covering all aspects of vitamin A deficiency and its adverse effects on health, survival and vision. Nutritional deficiencies, even mild have adverse effects on health and well being and are of great public health importance. Dietary inadequacies, socio economic, cultural factors and parasitic infections constitute the risk factors for VADD.
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