I've attempted to do this, and I looked deeply into the issue..
There are 2 major problems unaddressed by the medical (nutrition) community:
1.
we don't know "for sure" that man-made supplements can be absorb as well as naturally occurring ones.
2.
The Recommended Daily Allowance is based on minimum necessity to prevent pathological deficiency...
Now, really think about how imprecise a number based on that would be.. and how LARGE the deviation would be between all the variety of people, in size, race, habits (physical labor, mental labor)
For example, lets consider corner cases, foot-soldier vs a scientist... The brain consumes different things than muscle.. so something that a soldier would absolutely require, may even be toxic to the scientist, because their bodies are not tuned to process equivalent doses of certain chemicals.
To make something such as Soylent... is a bit of a dream based on the possibility of establishing an "IDEAL"...
No such ideal exists due to variance...
And the "current" scientific guidelines are very very rough....
I do my own system of soylent, more so to save time rather than produce "ideal nutrition" which I don't think is possible.
Each time I go to the grocery store.. I pick 10 random vegetables or fruits, or a mix of both...
I throw them all in a pot, add some potatoes for the starch, and boil till soft.
I can make 2 weeks worth at 1 time.. takes about 5 hours...
I've been eating this for about a year.
