Starvation Mode has always been used as an explanation for not losing weight or a plateau. This is another one, in addition to the fallacy of gaining muscle, that I have pondered upon. Picture me like this:
The article I have linked to explains it much better than I ever could.
I have heard people not only rush to explain a plateau or a slight gain through muscle gain; starvation mode is used as well. We aren't in Ethiopia folks.
We should be eating more. Music to our ears. I can't remember ever losing weight by eating more food.
Weight loss is not linear. We can eat, exercise, and drink water exactly the same for two straight weeks and have different losses for each of those two weeks. Accept it.
Let's see - it could also be how the stars are aligned. The wind could be out of the north or something.
The main point here is that this is pretty basic stuff but we need to have an excuse, a rationalization, something, anything to hang on to because weight loss can create some pretty desperate emotions - unnecessary ones I think but I also know I have been there.