One of the factors in the calcium bone leeching debate that is so often conveniently forgotten by people insisting that vegetation has to be part of the diet to prevent osteoporosis is that even mildly alkaline water will effectively more than buffer the acid load of an all meat diet. Once again more is not better. Just because a diet that includes some vegetation is more alkalizing than an all meat diet doesn't mean that it is healthier, as long as the net acid load on the ph homeostasis mechanism does not overwhelm the alkalizing elements - like for instance, alkaline water. Modern municipal water is usually treated with chlorine, which makes it very acid forming. But traditional living humans drinking water was predominantly alkaline.
Btw. Masai and Samburu tribespeople as well as suffering neither osteoporosis nor degenerative disease show none of the appearance of early aging that David is commenting on in Inuit. I think the harsh arctic weather extremes have more to do with the appearance of aging than their all meat diet.