Digestion of this protein makes the blood acidic, causing calcium to be taken from the bones to maintain natural blood pH. Increasing calcium intake by eating dairy products has not been shown to reduce osteoperosis. A study by T. Colin Campbell, Ph.D. of Cornell University has shown that people in the US have twice the incidence of osteoperosis than people in China, despite consuming twice the calcium. The natural food for any baby mammal is the mother's breast milk. Humans are the only mammals that consume the milk of another species and who drink milk past weaning. Cow's, goat's, and pig's milk are obviously designed for infant cows, goats, and pigs, respectively, and not for humans.
Lactase is one of the enzymes necessary to digest cow's milk.
Absence of lactase causes lactose intolerance, which causes cramps, bloating and diarrhea when dairy products are consumed. Most people have been taught that children must eat animal flesh and dairy products to grow up strong and healthy. The truth is that children raised as vegans, who consume no animal products, including meat, eggs, and dairy, can derive all the nutrients essential for optimum growth from plant-based sources. Children not only don't need animal products, they're much better off without them. One epidemiological study found significant levels of cholesterol and fat in the arteries of most children under the age of five.