Patrick, yes, I agree with you. Native people today suffer from all sorts of afflictions that their fairly recent ancestors did not. As do we. Native people didn't get diabetes or cancer or heart disease when they ate their traditional diets. Now that they are eating the same old nasty western crap as we are, though,  they have our diseases as well. This  is the same explanation used to describe when an American couple adopts a child from Asia.... the baby especially if from a rural area, has very low risk of cancers or other diseases based on the occurance of those conditions culturally and historically. Once the child is brought to the good ol' US of A, those risk rates skyrocket. Nutrition is the key.