You should make sure you understand what outliers are. The fact that you can name people from outside modern times that lived a long time is meaningless to the discussion.
They weren't outliers. I simply looked up famous Indians because I remembered one had lived to a startlingly old age, and skipped those who got killed by other people. If their diet caused health problems, you wouldn't have all these folks living to a decent age. All the Indian leaders would have bene these young guys who died off at 45 from eating too much venison.
I definitely don't think modern diets are better than what I imagine Native Americans ate hundreds of years ago. Venison sounds like a very healthy staple in a diet.
You should make sure you understand what outliers are. The fact that you can name people from outside modern times that lived a long time is meaningless to the discussion.