I got real serious about losing weight in a healthy way after I had my son. I started with this scale because to me a scale is a scale. WRONG. I never took diet pills and ate the same amount of meals a day and even worked out. When I started weighing myself it was pretty consistent but then about 5 days later my weight was really going all over the place. I went from down five pounds one morning to gaining eight pounds later that night then gain two pounds over night then down six pounds that night. I am not a person with health issues that would cause me to gain water weight either so I can't blame it on that. Needless to say I returned this scale very fast and went with a different brand.