A little different in my case. I started intermittent fasting last year and lost some weight to get to my ideal weight for my height. I was probably 10-ish lbs over before I started. Now that I'm skinnier and able to maintain it because of IF, I also lost some muscle mass, at least visually. What I hate with being skinny is upper arms get too thin and all my shirt sleeves look big as I can't fill them out. Since I'm too lazy to go to the gym to get my biceps/triceps bigger, I gave up and just accepted my skinny arms and legs. At least that's better than being overweight as I get older.