Every mammal species produces milk that contains all of the nutrients needed for a baby of their own species, and babies of different species have different nutritional requirements. Cow’s milk alone will not be able to sustain a human infant, just as human milk would not be able to sustain a calf. Replacing cow’s milk with human breast milk proteins as the basis of our formula means that it will match the nutritional requirements that an infant needs to grow and develop much more than the cow based alternatives currently available.