Breathalyser can tell if you are burning fat from a single exhale

TL;DR - A compact breathalyser can detect whether the body is in ketosis from a single exhale, potentially supporting weight-loss monitoring.

• Measures a breath-based indicator of fat burning.
• Provides ketosis status using one exhalation.
• Could offer a compact, non-invasive tool for weight management.
• Technical performance details are not provided in the supplied content.