Estimation of organ specific fat, muscle and water content using localized measurements of bioimpedance

A physiological sensing system comprising:

• an electrode array configured to be worn by a user in contact with skin of the user, the electrode array including a plurality of electrodes;
• a power source;
• a signal generator configured to apply probe electrical signals to one or more of the plurality electrodes using the power source;
• a detector configured to detect response electrical signals at one or more of the plurality of electrodes and to generate digital signal outputs, the response electrical signals being responsive to the probe electrical signals and the digital signal outputs being representative of a bioimpedance of a tissue of the user;
• memory configured to store the digital signal outputs;
• trained machine learning logic configured to detect a physiological state of the user based on the digital signal outputs, the physiological state being indicative of fat content of the tissue;
• and
• an I/O configured to communicate the digital signal output to the trained machine learning logic.