How common is it to have extra skin after losing a lot of weight?

I am working on loosing a lot of weight and was wondering if there is a right combination of diet and exercises that would prevent this from happening. I am 30 and haven't had kids yet so I figure my skin is still young enough to go back naturally. Will toning prevent it? Any advice would be helpful

How common is it to have extra skin after losing a lot of weight?
it is actully quite common. in fact most people when they lose alot of weight have some extra skin.
Reply:depending on how much you weigh how much you need to lose and whether you are weight training or not
Reply:LOTION!!! especially coco butter! and lifting weights. my doctor recommended it to me when I asked him.