If we did and ate everythign linked to longer life we'd probably fall over dead on the spot. What's works in one may not work in another. We each have different genes in play and they determines our longevity much more than lifestyle factors like diet. 3 genes linked to those who live beyond 100, in these long-lived people they're 'on.' In those who die earlier one or more are usually off barring disease and accidents.
Look at how many people lived beyond the current life expectency in times past, even when the then life expectency was half how long they lived. If diet and lifestyle factors actually meant as much as they claim they do, those people should have all died off on schedule. No medicine, no health info beyond common sense stuff, etc. People a couple hundred years ago shoulda all died around 40-50. But many didn't. It's genetic.
To say nothing of the nonsense we get about smoking. Just about every veteran from WW2 smoked. And many lived well beyond 80.