This is an incredibly successful bit of advertising that has wormed its way into our brains and policies to make milk seem magical.

The US Department of Agriculture tells us that adults should drink three cups of milk a day, mostly for calcium and vitamin D.

However, multiple studies show that there isn't an association between drinking more milk (or taking calcium and vitamin D supplements) and having fewer bone fractures.

Some studies have even shown an association with higher overall mortality, and while that doesn't mean that milk consumption itself was responsible, it's certainly not an endorsement.