Meal detection devices and methods

A meal detection system, comprising:

• an impedance sensor configured to measure impedance across one or more portions of a user;
• an accelerometer configured to sense movement of one or more portions of the user;
• and
• a processor in communication with the impedance sensor and the accelerometer and configured to analyze outputs of the impedance sensor and the accelerometer to detect meal intake by the user, the processor being further configured to trigger a controlled device to deliver a therapy to the user in response to meal intake detected by the processor and to calculate an accelerometer index based on the total energy of the accelerometer output in a frequency band of interest.

A meal detection system, comprising:

• an impedance sensor configured to measure impedance across one or more portions of a user;
• an accelerometer configured to sense movement of one or more portions of the user;
• and
• a processor in communication with the impedance sensor and the accelerometer and configured to analyze outputs of the impedance sensor and the accelerometer to detect meal intake by the user, the processor being further configured to trigger a controlled device to deliver a therapy to the user in response to meal intake detected by the processor and to calculate an impedance sensor index based on the median energy of the impedance sensor output in a frequency band of interest.