Ketone measurement system capable of validating measurements against behavioral rules

A system for measuring a ketone in breath of a user, the system comprising:

• a portable ketone measurement device configured to analyze breath samples of a user and generate ketone measurements based on the breath samples, the portable ketone measurement device comprising a breath input port that fluidly couples a breath input device to a ketone sensor, and additionally comprising a wireless transceiver that enables the portable ketone measurement device to communicate wirelessly with a mobile communications device of the user;
• and
• a mobile application that, when executed on the mobile communications device, directs the mobile communications device to at least:
• receive, via a wireless link, a ketone measurement generated by the portable ketone measurement device based on a breath sample of the user;
• determine, based at least partly on a time associated with the ketone measurement, whether the ketone measurement complies with a rule set of one or more rules, the rule set specifying at least a daily time window during which ketone measurements are permitted;
• and
• display an indication of whether the ketone measurement complies with the rule set.