is it healthier to eat no meat?

[FlatAssembler]

Then we must have a very different definition of a healthy diet. By "healthy diet", I mean one that reduces overall mortality.

Overall mortality is, was, and willing likely always be 100% and can’t be reduced any diet.  

Overall mortality in some time period, of course. How do you determine that smoking is overall unhealthy, in spite of the anti-inflammatory effects of nicotine?