I don't think that applies here. According to the FDA Guidelines [1] (page 4) for a dietary supplement:
"Furthermore, a dietary supplement must be labeled as a
dietary supplement and be intended for ingestion and must not be represented for use as conventional food or as a
sole item of a meal or of the diet"
Soylent is clearly marketing it as a meal replacement which should disqualify it as a supplement.
"Furthermore, a dietary supplement must be labeled as a dietary supplement and be intended for ingestion and must not be represented for use as conventional food or as a sole item of a meal or of the diet"
Soylent is clearly marketing it as a meal replacement which should disqualify it as a supplement.
1) https://oig.hhs.gov/oei/reports/oei-01-01-00120.pdf