[sharts]

The other aspect might be that people in their 60s also don't eat diets to replenish things that they've been losing since their 20's.

Similarly to how so many people that died from covid tended toward very low vitamin D levels [https://journals.plos.org/plosone/article?id=10.1371/journal...]

Most "medical" research tends to never focus on actual nutrition. Probably because that would reduce profits for those with vested interest from selling treatments.

[Celmfire]

Orrrr it could just be that high quality nutritional research is actually incredibly difficult due to the number of variables involved, especially when compared with an easily controlled single intervention study. Not saying there's no money involved, but it's much more complicated than that.