I attended a cardiology symposium two years ago.
One speaker extolled the vegan lifestyle and two presenters later a pro keto speaker said the opposite.
I suspect the truth is somewhere in between.
(The keto guy looked happier than the vegan lady, FWIW)
The only way to avoid the aches and pains of aging is to endure the aches and pains of vigorous exercise.
Lol. Meat eaters are always happier than grazers. Have you ever known a grazer who didn’t. have a stick up their arrogant posterior?