Really well written article! And a lot of things I've never heard of.
While keto is mentioned, I do think that another diet deserves a mention here: WFPB (whole food plant based).
In the book, How Not To Die, Dr Greger bring together the science that underpins this diet. Some one switching to this from a standard american diet can expect to add some healthy years to their lives, based on sci evidence.
Based on research studies cited there, the typical US American stitching from a SAD diet to a whole foods plant-based diet would live about ten years longer, and additionally have a much healthier and happier twenty years or so at the end with much lower likelihood of chronic illness or dementia.
For example: https://bluezones.com/exploration/loma-linda-california/
"Today, a community of about 9,000 Adventists in the Loma Linda area are the core of America’s Blue Zone region. They live as much as a decade longer than the rest of us, and much of their longevity can be attributed to vegetarianism and regular exercise. ... Adventists tend to spend time with lots of other Adventists. They find well-being by sharing each other’s values and supporting each other’s habits."
But even as good diet is essential, it is aspects of community and infrastructure that help people keep eating healthy together. Likewise, community and infrastructure can help promote daily exercise. So, ultimately, for most people, longevity is not an individual thing. It is a community thing.
While keto is mentioned, I do think that another diet deserves a mention here: WFPB (whole food plant based).
In the book, How Not To Die, Dr Greger bring together the science that underpins this diet. Some one switching to this from a standard american diet can expect to add some healthy years to their lives, based on sci evidence.