Gordon Wanless: please provide evidence in the form of links to research papers or case studies published in respected peer reviewed scientific journals, as Dr Mosley has in his books.
Even those few human cell types, tissues or organs that regenerate, regrow or repair after birth, after childhood or after puberty are not immortal, save some cancerous cell lines in tissue culture laboratories. Nor does a natural nutrient dense diet from infancy prevent wild mammals or tribes still living as hunter-gatherers dying of old age, tissue or organ damage, or of degenerative diseases.
The internet and media are full of alternative truths, illogical theories, medical hoaxes, scams, downright dangerous diet advice. See Freelee the banana girl, Pro Ana websites, ‘evidence’ that many world leaders and celebrities are shapeshifting aliens.