Comment by llm_nerd

The government and medical groups were advocating lower fat diets for CVD reasons, but among the mainstream it took hold overwhelmingly because it was seen as a mechanism for weight reduction or management. A gram of fat has twice the calories of a gram of protein or carbs, and this was widely repeated (yes, I was alive then). Similarly, if being fat was bad (and yes, it was viewed as very bad), then fat as a component of food must similarly be bad.

Obesity was obviously far less common, but concern about weight -- and note that weight standards were much, much tighter (see the women in virtually any 1980s movie, which today would be consider anorexic) -- was endemic culturally. Snackwells weren't being sold to middle age men, they were being sold overwhelmingly to younger office women paranoid about their weight, and it wasn't because they were concerned about their arteries. Low fat products overwhelmingly targeted weight loss, including such ad campaigns as the "special k pinch".

"Thus calories alone were less vilified."

I'm sorry, but this is simply ahistorical. Calories were *EVERYTHING* among a large portion of the population. What is your knowledge on the 1980s from, because it certainly isn't based upon observable reality.

In the 1980s, being slightly overweight made you the joke (like literally the joke, as seen from Chunk in the Goonies, and many parallels in other programs). As calories became cheaper and people's waists started bulging, it was an easy paranoia to exploit.