as milk protein meat protein or egg protein vegetable protein such as soy protein wheat protein rice protein and pea protein a mixture of free amino acids or a combination thereof milk proteins such as casein whey proteins or soy protein or a mixture thereof are particularly preferred the composition may comprise a fat source and if so the fat source preferably provides about 5 to about 55 of the energy of the composition for example about 20 to about 50 of the energy lipid making up the fat source may be any suitable fat or fat mixture for example soy oil palm oil coconut oil safflower oil sunflower oil corn oil canola oil lecithins or animal fat such as milk fat may be added if desired a source of carbohydrate may also be included if so it preferably provides about 40 to about 80 of the energy of the composition any suitable carbohydrate may be used for example sucrose lactose glucose fructose corn syrup solids maltodextrin or a mixture thereof also dietary fibers can be included if desired when present it comprises up to about 5 of the weight of the nutritional composition the dietary fibers may be provided from any suitable origin including for example soy pea oat pectin guar gum gum arabic fructo oligosaccharide or a mixture thereof suitable vitamins and minerals may be included in the nutritional composition in an amount to meet the appropriate or desirable guidelines one or more food grade emulsifiers may be included in the nutritional composition if desired for example diacetyl tartaric acid esters of mono and di glycerides lecithin and mono or di glycerides or a mixture.