I am very tempted by Soylent, but one key issue for me is that you miss out on thousands and probably millions of compounds that you ingest when you eat a varied diet of whole foods. There's so much unknown about what our bodies really require. Likely if you eat mostly Soylent every day you will end with a deficiency of some unrecognized but vitally important nutrient.
Would the variety of diets around the world not make it pretty unlikely there is some unknown but vitally important to survival nutrient in what we already eat? No matter who you are you can be pretty certain most of the world eats very differently from you.
This is exactly how I feel about processed nutrition. We don't yet know what we don't know, so we think we have it all figured out. This is true for medicine as well, but the difference is we already have a solution that works in whole, unprocessed foods.
