How I lost 100 pounds in one year and what happens to your body when you lose 100 pounds in one year. Losing weight is a lot easier than most people think. Women want to know, will I have loose skin if I lose 100 pounds? I didn't have this problem after losing 100 pounds in one year. How can you tell if your losing weight? Well I had other people telling me over and over again that it looks like I am losing weight. Will I lose weight if I stop eating for 3 days? Please do not do this.