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A healthful diet (adequate, moderate, balanced and varied) is essential for the maintenance of health and disease prevention. Vitamin A, iodine, iron and zinc deficiencies are the key vitamins and minerals which affects more than 2 billion peoples worldwide and most of these are found in developing countries. Pregnant and lactating women and young children are most vulnerable to micronutrient malnutrition due to their higher demands.
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Fikiru Dasa (2019) studied this question.
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