Actually that was a great resource. I looked up all the names of people who promote this diet to find out when they died, so I could calculate all-cause mortality of people promoting carnivore versus people promoting any one of (mediterranean, vegetarian or vegan). Most are still alive (and young).

This "study" of mine suffers from selection bias. I have to pick people who are known, known to have strongly promoted and followed the diet, and who died, and we know what age they died at (the reason they died is not included because that is too easy to fake or lie about or requires us to investigate uncertain causal links -- even when we know it was a car accident for example).

I'm happy to add more people if they are famous and the data for them is published, it's an open ongoing study. To counteract my selection bias, I encourage you to point me to more Carnivore people who lived long, or more Vegetarian people who died young. But they have to be famous known people who publicly promoted the diet.

I added my ancestors to the vegetarian list even though they don't fit the criteria, because their data doesn't actually change the number much (makes it slightly lower) and it just makes it more certain for me that this isn't some mistake.

Carnivore (this group just started with your data, thank you):

Owsley Stanley: 76

Vilhjalmur Stefansson: 83

Barry Groves 77

Walter L Voegtlin 71

Blake F Donaldson 73

Atkins 72

Dr. Alfred W Pennington 56

Charles Poliquin 57

Average: 70.625

Mediterranean, Vegetarian or Vegan:

Dame Harriette Chick 102

Caldwell Esselstyn 90

Blackburn, Henry 97

John Harvey Kellogg 91

Ancel Keys 100

Jack Lalanne 96

Nathan Pritikin 69

Jeremiah Stamler 102

Ellen G White 87

My G. Great Grandma Gass 99 (SDA vegetarian)

My Great Grandma Paxton 89 (SDA vegetarian)

My Grandma 79 (SDA vegetarian)

Average: 91.75

Seems like the carnivore people die 20 years younger.