The commercials very prominently suggested replacing breakfast and lunch with Slim-Fast shakes, so much so that "a shake for breakfast, one for lunch, and a sen

The commercials very prominently suggested replacing breakfast and lunch with Slim-Fast shakes, so much so that "a shake for breakfast, one for lunch, and a sensible dinner" was basically their unofficial slogan. Obviously it was still marketed for weight loss, but the suggested use is strikingly similar to what a lot Soylent advocates suggest.