Is cow milk much different to goat milk?

Goat milk, like cow's milk and human milk, contains lactose, many people with lactose intolerance can drink goat milk. Why? It has been hypothesized that the reason lies in goat milk's superior digestibility. Goat milk is more completely and easily absorbed than cow's milk, leaving less undigested residue behind in the colon to quite literally ferment and cause the uncomfortable symptoms of lactose intolerance.

It may also be that the patient is not lactose intolerant at all, but instead is one of the 1-in-10 people who are allergic to the major protein of cow's milk ... alpha S1 casein protein. The symptoms are almost identical to those of lactose intolerance. Both goat milk and human milk lack this offending protein.

The digestibility of goat milk can be attributed to its casein curd, which is both softer and smaller than that produced by bovine milk. The smaller and softer the curd, the more easily accepted by the human digestive system.

Another significant difference between cow's milk and goat milk is found in the composition and structure of fat. The average size of goat milk fat globules is about two micrometers, as compared to 2 1/2 to 3 1/2 micrometers for cow's milk