- An undesirable, lackluster, and artificial foodstuff, as a substitute for real meat.
1976, Pfaffenberger, Roger C., Mathematical Programming for Economics and Business, Ames: Iowa State University Press, ↑ISBN, LCCN 75023045:
- It is decided that the product will be composed of three elements — soylent green, red, and blue. Each pound of the final product must contain at least 2000 calories of energy and 1000 units of vitamins.
2008, Berryhill, Shane, Chance Fortune and the Outlaws, New York: Starscape, published 2011, chapter 8:
- “Today's selection is Superaide with a choice of soylent yellow or soylent red,” the servodroid said.