“…The incidence and duration of breast feeding has relentlessly declined (Newson and Newson, 1962), solid food has been introduced earlier and earlier to the infant (Department of Health and Social Security, 1974). These practices have led to an increased incidence of undesirable consequences, including neonatal tetany (Oppe and Redstone, 1968), enamel hypoplasia of the teeth (Stimmler, Snodgrass, and Jaffe, 1973), hyperosmolarity (Taitz and Byers, 1972; Davies, 1973), gastroenteritis (Mata and Wyatt, 1971), and infantile and possibly later obesity (Shukla et al, 1972;Asher, 1966;Eid, 1970).…”