In vivo, noninvasive, bioelectromagnetic glucose sensor system and method

A noninvasive glucose monitoring system operative to measure bioimpedance with magnetic field coils outside a user's finger, comprising:

• a drive-and-sense coil operative to generate a magnetic field in blood in the user's finger to measure blood and glucose electrical conductivity without penetrating the user's finger or drawing blood;
• a finger clip or a coil button, wherein said drive-and-sense coil is contained in said finger clip or said coil button;
• an electronic oscillator with a plurality of circuits comprising radio frequency chokes, said electronic oscillator being in electrical communication with the drive-and-sense coil;
• a microcontroller;
• and
• a microprocessor;
• wherein the microcontroller is operative to sequentially select a plurality of radiofrequencies below about 107 Hz at which the magnetic field is generated by the drive-and-sense coil, the electronic oscillator is operative to measure a change in mutual impedance across the drive-and-sense coil for each of the plurality of radiofrequencies, and the microprocessor is operative to calculate a glucose value from the changes in mutual impedance measured by the electronic oscillator.