Some reports suggest that you would be better getting your calcium requirements from other sources, such as fruit, vegetables, fish and seeds.
In order for calcium to be absorbed and used by the body there must be an equal quantity of magnesium and sufficient amounts of vitamin D. Magnesium and vitamin D aid the absorption of calcium into the bones, and cow’s milk by itself doesn’t have enough of either to support its calcium – which is why you will often see milk fortified with vitamin D. In reality, only about twenty five percent of dairy calcium can be absorbed.
This can cause excessive calcium to accumulate in the body, which in turn can lead to the development of harmful calcium deposits in your joints, cause kidney stones and plaque to build up in the arteries of the heart.
Milk and dairy products are also high in protein, which can make the blood acidic. When this happens the body will try and re-balance itself by using calcium, which it will leach from the bones.
Drink milk if you enjoy it, but be aware it may not be fulfilling your daily calcium requirements