really any diet is a fad of sorts... by definition, a lot of things can be labelled that...
Keto has been around a long time, in various forms, so i don't see it as a "fad" per se because its been around for a long time and never disappeared, but it has seen ups and downs in its level of popularity...and this is an up cycle
Any diet can work, so long as you have the discipline to follow them to a T.
For some, a keto diet works best... for others IF works for them...I think if it helps people feel physically better, psychologically better, then more power to them.
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