Calcium is the most common mineral in the body. This article looks at its metabolism; its promotors and inhibitors; dietary sources; and the role of calcium through the life cycle.

Iron deficiency is one of the most common nutritional problems, and occurs in a wide range of age groups. There have been many recent opinions about iron, particularly in the infant's diet. There are no accurate Australian figures for the prevalence of iron deficiency in infancy, but a declining trend has been shown in the...