I haven't read it all but if someone else ahs posted my appologues... its like jojo dieting..
When you starve the body for a longer period of time the body will put on extra pounds after in case you get something similar happening again... Hence why women that are on and off dieting often shed the pounds and then gain more again...
and the older you get.... the harder to get rid of them...
I can vouch for it as a woman at 230 lbs.... Im lucky though Im massive so its not all fat Im heavier than average even when skinny at 180 lbs being a size 8.. but Id be guessing that its the same effect...