Micronutrient

[3][4][5] In varying amounts supplied through the diet, micronutrients include such compounds as vitamins and dietary minerals.

[6] A multiple micronutrient powder of at least iron, zinc, and vitamin A was added to the World Health Organization's List of Essential Medicines in 2019.

[3] A 1994 report by the World Bank estimated that micronutrient malnutrition costs developing economies at least 5 percent of gross domestic product.

Correcting iodine, vitamin A, and iron deficiencies can improve the population-wide intelligence quotient by 10–15 points, reduce maternal deaths by one-fourth, decrease infant and child mortality by 40 percent, and increase people's work capacity by almost half.

The elimination of these deficiencies will reduce health care and education costs, improve work capacity and productivity, and accelerate equitable economic growth and national development.

Other effects such as improving zinc deficiency, children's growth, cognition, work capacity of adults, or blood indicators are unknown.

Structure of the Mn 4 O 5 Ca core of the oxygen-evolving site in plants, illustrating one of many roles of the trace mineral, manganese. [ 18 ]