Paul, here’s why animal milk is thought to cause osteoporosis. Like all animal protein, milk acidifies the body’s pH, which in turn triggers a biological correction.
Calcium is an excellent acid neutraliser, and the biggest store of calcium is in our bones.
So the very same calcium that our bones need to stay strong is utilised to neutralise the acidifying effect of milk.
Once calcium is pulled out of the bones, it leaves the body via the urine, so the net result after this is an actual calcium deficit.