Skin and intestinal reactions to cow’s milk was described by Hippocrates (460-370 B.C.) and Galen of Pergamum (130-210 AD), both Greek physicians so there has been an awareness of problems with cow’s milk for a considerable period of time.
Cow’s milk is the most common form of allergic reactions, although the actual prevalence is disputed.
Mammals have evolved over millions of years to provide nutrition for their infants in the first stage of life. There are significant difference between species depending upon factors such as rates of growth.
A bull reaches maturity at 9-10 months, so the rate of growth is markedly different to humans. Consequently, the composition of bovine milk is very different to that of humans. The consequences of cow’s milk consumption are potentially harmful.