Without access to a lab that can measure blood ketone levels, it’s difficult to say if [Jens] device really works as intended. If he were to find his way into a lab, though, it would be possible ...

blood ketone testing techniques that measure beta-hydroxybutyrate — the predominant ketone body in DKA — are recommended in the place of urine ketone testing for diagnosing and tracking ...

Ketones are the acids that are produced ... 14,000 breathalyzers in its pre-launch phase. The device is a battery-powered, handheld breath-measuring stick that pairs with a smartphone app.