I agree with wannabeskinny. I can't understand the starvation mode/metabolic adaptation at all
But my doctor put me on a vlcd before and it worked great, this time around I'm doing my own version of it and I almost never hit 1000 calories a day (well this is after exercise). But I also eat TONS of veggies, so I can never reach the calorie limit eating that many veggies.
I think if you want to add in extra calories, you could try protein bars? Maybe it won't seem like so much food but you can still pack proteins + some carbs that way.
Best of luck!
09/15/2014---------- (173lbs)-started grad school!
01/08/2015 > 40-35-43 (179lbs)-new year, new me!
Lowest recorded weight as an adult -->160!