Food vitamins and minerals can lead to diseases that can have far-reaching effects on health. For instance, 30% of the world's population either has, or is at risk for developing, iodine deficiency. It is estimated that at least 3 million children are blind due to vitamin A deficiency. Vitamin C deficiency results in scurvy. Calcium, Vitamin D, and phosphorus are inter-related; the consumption of each may affect the absorption of the others. Kwashiorkor and marasmus are childhood disorders caused by lack of dietary protein. Many individuals limit what foods they eat for reasons of morality, or other habit. For instance, vegetarians
Vitamin D deficiency in Australia Australian Standard 2.4.2. It is mandatory for all food manufacturing companies producing table spreads like butter and margarine to have no less than 55 mg/kg of vitamin D, as a response to a growing public health requirements. In response to recent advances, public policies are being reconsidered to ensure vitamin D is evidently being measured. With the vitamin D deficiency resurfacing the nutrient reference value guidelines were established, in turn creating the dietary vitamin D recommendations. The dietary vitamin D guidelines are assuming limited exposure to UVB sunlight are: Infants, Children and Adults < 50 years: 5 µg/day Adults >