answer:You will have loose skin for awhile. I lost 60 lbs over the course of 8 months, and my skin was loose for about 6 months after. But only around my belly; my arms, legs and face did not get saggy or loose. I don’t know what defines “massive” weight loss, I lost over 25% of my weight. But I wouldn’t call it massive. A suggestion: don’t think about the pounds, think about getting your body mass index into the healthy zone, around 23%.