For the most part, yes. How limited depends on which sect and area you’re talking about. See various Middle Eastern Christian lenten fasts. (And funnily enough

For the most part, yes. How limited depends on which sect and area you’re talking about. See various Middle Eastern Christian lenten fasts. (And funnily enough before Vatican 2 even Catholics did a more severe Black Fast, which I follow each year). It’s definitely relevant to this thread though, which is about intermittent fasting. And not which is the most extreme fast.