I have an eating disorder, and for the past six months or so I've been on an extreme diet. My problem is that now I'm recovering, I seem to be putting on weight at a ridiculous rate. For example, yesterday I had at least 3000 calories worth of food. And I woke up today with a MUCH fatter face. I guess what I really want to know is whether I've genuinely gained weight, or it's all in my head?
Answer on Is it possible for someone on an extremely low-cal diet to gain weight overnight?
WOAH. 3000 is a lot of calories, especially since your metabolism slows down when you're eating less.
Since 3500 calories equals one pound of fat, it's possible you may have gained at least half a pound from what you ate yesterday. I doubt you'd gain an entire pound, but half is totally possible.
Although I wake up with a puffy face everyday, and then I just put a cold, wet cloth over my face and the swelling goes down. I thought that was just a normal part of waking up.