http://www.best-of-diet.biz/rapid-weight-loss-diet-plan/

Saggy Skin worries after moderate weight loss (I’m almost 16)
I’m 5’7 and weigh somewhere in btwn 166-170 lbs. i plan on losing 20 to 40 lbs through diet and excersise. i have been at least 30 lbs overweight since i was eight years old after rapid weight gain due to early puberty. I wanted to know what my chances are of having extra skin left after my weight loss. my main area of concern is my upper arms. i am obviously to young to be thinkin about plastic surgery (i will be 16 in 6 months). i have a lot of stretch marks that have faded within 3 to 4 years of them appearing (with no help from lotions, creams etc. they went away naturally) if that counts for anything.
12 hours ago – 3 days left to answer.
at 170 lbs losing 40 lbs would only be a loss of 25% of the total bodyweight will will not result in sagging skin.