MYTH DEBUNKED – Why the dairy industry doesn't campaign the strong bones mantra anymore:

The truth is the dairy industry never had the science to prove this claim. When research was requested to prove that animal milk (such as cow’s/goat’s/sheep’s, etc. milk) gives humans strong bones, they quickly discovered that animal milk consumption actually does the opposite – it depletes the body from calcium.

How does animal milk deplete your body from calcium?

Like all animal protein, animal milk acidifies the body pH which in turn triggers a biological correction, and it turns out that calcium is an excellent acid neutralizer. The biggest storage of calcium in the body is obviously in the bones. So the very same calcium that our bones need to stay strong is utilized to neutralize the acidifying effect of animal milk. Once calcium is pulled out of the bones, it leaves the body via the urine so that the surprising net result after this is an actual calcium deficit and possible kidney stones. Knowing this, you will understand why statistics show that countries with the lowest consumption of dairy products also have the lowest fracture incidence in their population.

Source: www.milkdocumentary.com