People of a certain age remember these, but they don't remember eating anything that came from the cards.
It was a high-tech invention, in its own way - no more heavy books to page through! Everything scientifically organized in a wood-grain plastic drawer with a clear plastic cover. Let your fingers do the walking! Just like computer cards!
They floated around antique stores for a while, showed up at flea markets. I'm not sure anyone ever wanted them, but of course there are those peculiar completists who want to recreate the times in all its banal details.