For those with allergies and asthma, entirely cutting dairy products from the diet for a trial period may be worth trying. Heart Disease Most dairy products have excessive saturated fat, which is strongly linked with heart disease. Some choose margarine over butter, but margarine has been hydrogenated, causing it to contain unnatural trans- fats, which have also been linked with heart disease. Mono-unsaturated fats, such as olive, canola, and peanut oils, are better for the heart than saturated fats. Humans who consume the products of animals fed antibiotic-laced feed may acquire antibiotic resistance.
Milk is fortified with vitamin D, which is toxic in high doses.
Concerns have been raised that the vitamin may not be adequately mixed when fortification of large batches of milk occurs. Milk-drinking in our society is a cultural norm that most people do not question. However, it defies rationality to assume that anyone besides a calf has a physiological need for cow's milk. NIH Consensus Conf. J Lab Clin.