Note that most of the minerals in goat and cow milk are significantly higher than in human milk. Goat milk proteins have a slightly different amino acid structure than cow milk proteins. Thus, a person who produces antibodies to cow milk proteins, may not produce antibodies to goat milk proteins. However, there is no guarantee that a person who is allergic to cow milk will not be allergic to goat milk, because the milks are similar. Lactose intolerance results from a person's inability to digest lactose.
Lactose is present in all milks.
Thus, goat milk can not successfully be substituted for cow milk in cases of lactose intolerance. Goat milk's tendency to be more easily digested than cow milk is due to its protein make-up. Goat milk has low levels of the protein alpha s1-casein, a protein that is involved in curd formation. Most cow's milk in the store is homogenized so that we do not see the two phases of milk. The milk is forced through tiny pores under high pressure to break the fat into smaller sized globules.