Secretly, I don’t insist the current requirements are complete. everyone gasps
However, without undertaking this problem, not even the world’s brightest traditional nutritionists can say what is missing. Therefore, there is no time to lose, and we should start treating this as an iterative problem, consuming the current suggested nutrients and as little else as possible, so that we know that any problems that arise mean something is missing from our knowledge.
This is not an engineering problem of supplying the human metabolism, that we know “sooooo much” about, this is a functional analysis of what comes in and what comes out. (inb4 toilet humor, Soylent goes in, health data comes out)
That is how traditional nutrition has been gathering the information about why we need a certain nutrient, or whether a substance is an antinutrient, but what makes it inefficient is the lack of a baseline, “poor” food, that would still provide for all the known needs, allowing for extended testing.
Then there are various non-essential substances that some claim have great benefit to human vitality and longevity, such as the controversial antioxidants. We have identified such substances everywhere for while now, and a study with Soylent used as a baseline could finally say how we should feel about them. At least in a clean Soylent diet.