On one hand the result of biochemical hacks is extremely difficult to discern, even for one individual, definitely.
I was just expanding the definition of “the right diet”, because I feel like there’s this tendency to misunderstand each other when some people come at it from the standpoint of getting to what I’d call a naturally healthy state, some people want to maintain a healthy state, and some people start with a naturally healthy state and aim to go beyond that, building on the human experience in some new way. Does “a proper human diet” include meat? I think so. Does it include NMN supplements, for example? It certainly doesn’t have to include them to create a healthy person, nature did not design us to consume this item. It doesn’t mean we couldn’t potentially be better with it than without.