No there is no way to prevent this. I myself lost 100 lbs, did everything right, lost it slowly over a few years, lost it young (age 12-17), still left with extra skin and stretch marks on 90% of my body. It is the worst on my stomach area. My stomach has enough extra skin that I will never be able to see much definition in my abs. It also causes your body to hold onto the fat on the extra skin, making it near impossible to drop to a low bf%.