This is wrong. The fatsecret app for iPad is poorly designed. You click the "weigh in" button and it lags so you are not sure if you clicked it. So you go to click it again and it changes just before your finger makes contact to the "save" button. Once you save there is no way to edit from the app so I logged in online hoping I could edit on the web and I can't seem to find a way to do that either.