Cows milk is tailored for infant calves, not for adult humans. Things that calves need more than humans tend to be overabundant in milk, and things that humans need more than calves tend to be lacking.
Guess what -- there is _NO_ food which is tailored specifically for adult humans. All foods are lacking in some nutrients that we need, and have excesses of others. If you truly believe this argument, why don't you take it to its logical conclusion and not eat anything?
Furthermore, different people have different nutritional requirements, so there simply cannot be a one-size-fits-all food. And, since there are very few people out there who drink _nothing_ but milk, this is a total non-issue.
Most human adults are lactose intolerant. The lactose in the milk can cause humans abdominal discomfort and in some cases more serious ill effects. The effects are minor in most folks but can cause lingering health issues.
Most? Some are, to be sure, but I take issue with 'most'. Numbers?
Anyway, if milk makes you sick, don't drink it, or at least take a lactase supplement. If not, then drink it if you want. It takes a real genius to figure things like this out, I swear.
Contaminants tend to be concentrated in dairy products. (This makes sense to me intuitively. Cows eat a ton of grass and grains that are grown and processed with chemical fertilizers and pesticides. A cow eats a lot of food to make a little milk....)
Perhaps... But, consider that HIV-positive mothers frequently give birth to healthy babies.
Studies of shown that some of the hormones used to increase milk production (rbGH/rBST) appear in the cow's milk itself. It has been postulated that these hormones may have associated cancer and other health risks. Because these hormones have been used only in the last decade, it's too soon to tell which if the postulated risks may be real.
Maybe, but if this was a problem worth worrying about, we'd have known about it already.
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