Is it possible to lose weight without exercise? I run these online fitness challenges all the time and one of the reasons I do is for my own accountability and to help me stay on track. One question I get all the time is can you lose weight without exercise? People have a preconceived notion that in order to be healthy we must exercise. Of course,it is true that exercise is good for your heart, muscles, bone strength and density. I have been working in the fitness industry since the year 2000, and even before that I was studying Kinesiology in college. One thing that has become clear to me over the nearly twenty years in this industry is the importance nutrition plays in weight loss.