Sam responsible I do not have a Rambam to look up.
But if he had assured all food except bread and beans, as I said, we would have known about it long ago.
Either he did not assur it or we follow others who hold differently, those are the only two possibilities.
Besides people who live longer because they do not have heart attacks or cancer, often live long enough to get Alzheimers.
What if given the choices someone would not want to live long enough to get Alzheimers?
Do you think you or anyone else has the right to force someone to live a worse life not eating things they enjoy, just so they can live long enough to get a disease they constantly live in fear of?