[DanBC]

> I would like to see this in reputable studies, because everything I have read on the subject rejects the hypothesis that there is a physiological change in energy usage as a result of lowered intake. In fact, it a) doesn't make any sense since fat is supposed to be a store of energy for lean times and b) if the body could function at its current level on less energy, it would.

This is still talking about near starvation mode. People who stop menstruating and who grow lanugo are doing stuff that reduces their need for energy.

(I'm not sure it's accurate even for this extreme state though. Re-feeding is risky, but I don't know if "starvation mode" is part of the cause of that risk.)