>> We've mapped the nutrients required by our cells down to a molecular level. We've even got a thorough understanding of the interaction between the food we eat and how the microbial ecosystem in our digestive system breaks down our food as we digest it.
This belief, in a nutshell, is the problem with nutrition. We have done no such thing, but we've convinced ourselves that we have. I have no doubt that we aren't even capable of understanding half the shit that goes on to turn food into energy.
At one point, society killed people who dared claim that the Earth revolved around the sun. We should never think, even for a second, that we have all the answers, and we should be immediately suspicious of any claim that we do.