POPSUGAR Fitness Pop Quiz Does Muscle Turn to Fat? by Fitness 6/14/07 0 Shares Like us on Facebook Read More MythsMuscleQuizFat Get fit with our daily newsletter Yoga Weight Loss Running Working Out Sign up with By signing up, I agree to the Terms and to receive emails from POPSUGAR. What’s Your Reaction? Thanks for your reaction Don’t forget to share this with your friends! 0 0 0 0 0 0 0Reactions cams 7 years Because if it did it would basically break every law of physics ever melda 7 years I read on some website it doesnt. fat cells just become smaller with exercise and eating healthy and when you stop it the start to store fat again, bigestivediscuit 7 years I actually know this from experience ... I'm quite tiny, and I used to weigh about 115 during the time I was training every day for ballet (I danced for about 14 years). When I quit, I lost between 8-10 pounds over a long period of time because I lost basically most of the muscle mass I had gained.