But now we can actually see that in the body. And can predict that response from omics. And maybe apply this to drugs too.
cell.com/cell/fulltext/…
But the general concept is to take a battery of assays (everything from self-report in a food diary to blood tests to wearables), do data integration, and then predict.
See Snyder integrome paper.
nightingalehealth.com/research/blog/…