While I agree with most of the critics towards the article and the author (who by the way, is a friend of Peter Diamandis who also happens to run a scammy longevity clinic), (some) reasons behind the longevity of many of those centenarians have been identified: low mTOR activity and high omega 3 intake. mTOR (mammalian target of rapamycin) is a nutrient sensing enzyme particularly sensitive to some amino acids like Leucine found in meat and whey protein.

Rapamycin (Sirolimus), an immunosuppressive drug was found to considerably inhibit mTOR activity. Past clinical trials recently showed considerable lifespan extension in multiple animal models and will likely work in humans. It’s one of the too drugs found in the ITP trials (1). If I’m not wrong, they are even starting trials now and new ones will come soon. That’s because, as the name implies, that enzyme is part of all mammals.

Lots of people experiment with safe dose ranging from 5 to 10mg once a week and report lots of benefits, few side effects (doses aren't as high as if used by organ transplant receivers).

I’m in my 30s so I’m not willing to take any risks with those. I move, I eat a Mediterranean-ish diet, take Vitamin D3, K2 and Omega 3d and eat no sugar. But if I was past 60 I’d definitely ask my doctor.

That being said, this is not radical life extension. That would likely be possible with upcoming therapies like partial reprogramming or senolytics. But it definitely is promising and will possibly help living a longer and healthier life if repurposed for other diseases than simply immunosuppression.

(1) https://www.nia.nih.gov/research/dab/interventions-testing-p...