While I agree with Matty that cow?s milk has lots of nutrients in it and is clearly a nutritious food. I don?t think that you can take away the fact that many babies are being given cow?s milk formula (or indeed other non-cow?s milk formulas) and this is causing problems with cow?s milk (and other foods) later in life.
For a very important time in the child?s life cow?s milk has, not just been a part of the baby?s diet but been the MAIN nutrition source. I believe that there would be a problem with any food that is suddenly used as the main nutritional source and where variety isn?t available.
The evidence is there to show that babies exclusively breast fed for at least six months have less allergies, not just allergies to cow?s milk. And clearly if a person has an allergy to cow?s milk then cow?s milk will do them no good ? not matter how many nutrients it has.
Would we be seeing the number of allergies to cow?s milk if we, as a society, hadn?t feed cow?s milk to our babies? And would people be worrying so much about the benefits or otherwise of cow?s milk if we hadn?t made it such a huge part of our diet?
I don?t think the problem lies with the cow?s milk but rather with our general attitude to food. My personal belief is that we need a varied diet which is as close to its natural form as possible. And I know that I feel much healthier when I manage this than when I don?t, whether I have cow?s milk as part of my diet or not.