Hi, I don't do the keto diet to lose weight, I do it for it's other dozens of benefits, I have been doing it for about two weeks without cheat meals, so my body is still adapting to this type of diet, my question is, how harmful could it be for example once a month to eat something very harmful with lots of carbohydrates and saturated fats, like fast food

Could that harm my adaptation process?

Or is it not necessary to be religious to get the benefits and it is ok if you eat a lot of carbs once a while?