This tiny, white vision of the future had its roots in late 19th Century feminism. In the lead up to the 1893 World’s Fair in Chicago, the American Press Association asked writers from a number of fields to promote the event by writing essays on what they thought the world of 1993 might look like. Their work was published in small town newspapers across the country. American suffragette Mary Elizabeth Lease predicted that by 1993, humans would only eat synthetic food, liberating women from the drudgery of the kitchen. People would “take, in condensed form from the rich loam of the earth, the life force or germs now found in the heart of the corn, in the kernel of wheat, and in the luscious juices of the fruits. A small phial of this life from the fertile bosom of Mother Earth will furnish men with substance for days. And thus the problems of cooks and cooking will be solved.”
(via BBC - Future - Health - Meal-in-a-pill : A staple of science fiction)