[cthalupa]

Your body doesn't enter starvation mode until you are in the 4-6% body fat range no matter what your diet is.

I linked 3 reviews/analysis of a large group of studies.

Your study also doesn't argue what you think it argues.

> A total of 33 studies were analyzed, revealing no significant differences between the KD and other diets in muscle mass

But fundamentally it is not a meta-analysis of people on weight-loss diets, it is a meta-analysis of people on keto. Look at the included studies - nearly half of them were on athletes. They weren't tried to lose weight - they were just eating keto. No one is saying that maintaining on keto is going to cause muscle loss.

Your confidence is the problem here - you're throwing around a bunch of words you don't understand and linking studies you didn't read.