What happens to your metabolism after being on a crash diet for a long time?

Hi, You will lose weight initially but then as soon as you start eating normally you will regain the weight even quicker than you lost iy. Your metabolic rate will slow down and your body will go into starvation mode. You will then have to work hard to maintain the weight. It is all rather complicated.....but the secret is to eat as little as often. I have crash dieted for years and after all this time have dropped from a UK size 14 to a size 6 and believe me.....i have to now work hard to maintain this and can not just eat what i want. I have simply messed up my metabolism....trust me....it is not worth it....i gain weight like the click of a finger and this is due to crash dieting.