There is no diet to immortality.
You are going to die.
If you die as healthy as you can be.
You die the exact same as a heroin overdose.
So ffs enjoy your food. Enjoy your time. Do what you do. Have a good day. Enjoy the fact you can have a good day. Some people are having really bad days.
Thats a lovely way to put it. Unfortunately that completely ignores the years of pain, lack of mobility, cornucopia of drugs you will be taking, most of which will have competing side effects.
Healthy people don't just live longer lives, they live happier lives.
My body is not a temple but god damnit I am not going to be a 50 year old man with a pot belly who waddles around out of breath and miserable. Everything in moderation.