I don't have alot to go on here, are you diabetic? Often happens, with the amount overweight. Make sure you are on the appropriate Optifast. Is there a sugar-free type? Is this the only thing you can have? Your MD office would be wise to let you have control with a liquid diet, for variety if nothing else. Mine was quite forthcoming with soups, cottage cheese, jello, -- still liquids and yet some control. Tomato soup every night was actually something to look forward to, with skim milk and whatever spices....one night Mexican spices, another Italian, sometimes just dill and garlic, creative. Good luck, I'm pulling for you as I know your children are!!