Nutritional Needs of the Infant At birth At birth Milk through breast feeding or formula Milk through breast feeding or formula 2-4 weeks 2-4 weeks Orange juice or vitamin C supplements Orange juice or vitamin C supplements 4 weeks 4 weeks Fluoridated water Fluoridated water 3 months 3 months Cereals which provide iron and taste Cereals which provide iron and taste differences—B vitamins differences—B vitamins 3-4 months 3-4 months Mashed hard-cooked egg yolk—protein and iron Mashed hard-cooked egg yolk—protein and iron