A nutrition balance for health control, especially for diabetics, to measure a weight and a caloric value of an edible substance, comprising a main body; a scale unit generating a weight signal while receiving the weight of the edible substance; a control unit comprising at least one input unit inputting a predetermined reference data and providing a reference data signal; a control system comprising a memory unit storing a predetermined balance database information and a controller, communicating with the memory unit, communicated with the scale unit to receive the weight signal and communicate with the input unit for receiving and storing the reference data signal to generating an output signal in response to the weight signal according to the reference data and the balance database information; and a display arrangement communicating with the control system to provide an output. The nutrition balance is for monitoring health and diet.