ok i will post this one and only once, because it will seem super kooky, but no, it’s a thing, i’ve done it, i will do it again whenever i need, and it works
best entry point to go down that rabbit hole likely here:
https://www.reddit.com/r/keto/
oh, and you might wanna watch this:
https://www.imdb.com/title/tt3892434/
sincere good wishes