Stephen Walsh, Science Coordinator for the International Vegetarian Union, wrote in his Dec. 16, 2001 letter to the editor of BBC News titled "Milk 'Best Calcium Source' for Girls?":

“Bone health is influenced by many factors, including calcium, protein, potassium, phosphate, vitamin-D, vitamin-K and magnesium. Up to 10,000 years ago no humans consumed cow’s milk yet the archaeological record shows that our ancestors, in common with our ape relatives, maintained excellent bone health without having to steal milk from the children of other mammals to do so. Our ancestral diet, and that of other apes, includes abundant levels of all the nutrients required for bone health, drawn overwhelmingly from plant sources.”

Dec. 16, 2001