Choosing the healthiest milk depends on your nutritional needs, intolerances, and preferences, but cow's milk and fortified soy milk are healthy options for most people.
Dairy farmers and industry partners can help educators fill gaps through programs and teaching tools hosted by Dairy Farmers of Wisconsin (DFW).
And cows, as pointed out by anti-dairy nonprofit Switch4Good, are simply the "middlemen" for calcium, accruing it in their milk from diet the same way humans can find it in kale, tofu, white beans, ...