The biggest reason why diets never work...you got to have that cheat meal/day in there to keep your body/metabolism in flux. I think it's roughly 20% over what your "normal" intake would be, which is a calculation of itself with several variables...so mileages vary. But it would be say 2400 for men and about 2000 for women as an example...not only that it should be like once every 5th or 6th day. which the sandwich would qualify for if the caloric content is true