Earlier quoted context omitted.
> The soyboy insult came about particularly to criticize frail tech nerds (who are white in all the memes) who eat meal replacement diets, particularly soylent. No, it has been around for longer than that. Soylent is a tertiary at best aspect to this.
Earliest archived use of the term on 4chan was from 2017, several years after soylent meal replacement shakes hit the market. Soy was also being used in various other vegan and/or processed foods at the time, but soylent was particularly conspicuous due to it having soy right in the name. Regardless of which particularly product prompted this, the point is the meme is new but westerners not eating soy is not new and…
In my experience hardcore competitive bodybuilding culture in particular does not cross over with 4chan very much. The users of 4chan tend to be too young to have entered to competitive bodybuilding scene so the generations are different, plus there are other cultural issues. Putting time into 4chan and time into the gym are not obviously exclusive of each other but in practice end up being so.