Owsley 'The Bear' Stanley

I have been eating the natural human dietary regime for over 47 years now. I do not eat anything whatsoever from vegetable sources. The only things veggie I use are spices. My diet is usually 60% fat and 40% protein by calories. I used to eat 80/20 when younger and about twice as much quantity of meat also, but that seems too much energy at my age, which is 71- even though I am very active. I think the body actually becomes more efficient with energy as you age, but I have no way of proving it true. Otherwise, my body today is very like it was at the age of 30. I figure most of what we call 'aging' is due to insulin damage to the collagen and other body structures. No carbs = no insulin. I don't heal quite as fast when injured as I did as a youngster, however. But I have few wrinkles, and my skin is still strong and elastic.