At least one company claims it already has a product, Soylent, that provides all daily nutrients.
https://en.wikipedia.org/wiki/Soylent_(meal_replacement)
However, others say that Soylent is not a substitute for a varied and nutritious diet that includes a variety of fresh fruits, vegetables, whole grains, lean proteins, and healthy fats.
Some medical foods are also supposed to provide complete nutrition, as for example the kind of food provided through feeding tubes.
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