Powdered formulas are not commercially sterile, therefore preparation requires careful handling to prevent contamination and minimise the growth of microorganisms.

Manufacturer's instructions should be followed in all cases and anyone caring for your baby should be made fully aware of what kind of formula you use.

Baby formulas contain energy-providing nutrients (protein, carbohydrate and fat) as well as water (an essential nutrient) and appropriate vitamins and minerals. The energy nutrients provide the calories necessary to maintain bodily functions, support activity, and promote growth.

Standard iron-fortified baby formulas are nutritionally complete foods for normal infants. Where a doctor recommends a formula not fortified with iron, another source of iron should be advised.