Handheld device measures breath acetone to detect fat burning

Scientists have created a handheld device that can measure when the body is burning fat by analyzing breath. The breathalyzer detects acetone levels in exhaled air to determine if a person is in ketosis, a metabolic state where the body uses fat for energy instead of carbohydrates. This development could help individuals following low-carb or ketogenic diets, as well as those with medical conditions like diabetes, monitor their fat-burning status more conveniently. The device offers a non-invasive alternative to blood or urine tests, potentially making it easier for users to track their dietary compliance or metabolic health. While the source does not specify a release date or exact accuracy figures, the technology represents a step toward portable metabolic monitoring. Further research and commercialization efforts may follow to bring the device to consumers.