Scientists Develop Handheld Device for Measuring Fat Burning The pursuit of optimal fitness and weight management has long been plagued by imprecise measurements and misleading metrics.
Body fat percentage, a staple in health and wellness circles, is often estimated through bioelectrical impedance analysis (BIA), which is as much art as science.
Researchers led by Andreas Güntner have developed a handheld breathalyzer that detects acetone in exhaled breath to gauge ketosis.