Enfamil A.R. offers the benefits of rice cereal without nutrition balance . Brain-building, milk-based powder, Enfamil A.R. has iron and is thickened with an added rice starch and expert-recommended amount of DHA (docosahexaenoic acid . Includes Natural Defense® Dual Prebiotics® blend for digestive health. Provides complete nutrition for your baby's first year. There are 1.22 lbs of powdered formula in a canister: When mixed with water it will flow through a standard nipple.