This post references the "Vertical Diet" by Stan Efferding. It's a way to eat for physical performance (not necessarily longevity) that has many great testimonies.
Anecdotally I've found that eating meat and then following it with pineapple...
Citral is a GRAS2 status food and drug ingredient in widespread
use as an additive to cosmetics and toiletries, and as a lemon
flavor in foods. Citral is a simple, partially saturated, analogue of retinal, which may...