Inadequacies in intake of vitamins and minerals often referred to as micronutrients [...]. Micronutrients enable the body to produce enzymes, hormones and other substances that are essential for proper growth and development. Iodine, vitamin A, and iron are the most important in global public health terms; their deficiency represents a major threat to the health and development of populations worldwide, particularly children and pregnant women in low-income countries. (Source: WHO)