Device detects fat burning via exhalation

A team of Swiss researchers has developed a portable device capable of determining whether the body is burning fat or carbohydrates by analyzing a user's breath in approximately 90 seconds. The device works by measuring the concentration of acetone in the air, which is produced when the body uses fat as an energy source, whether during exercise, dieting, or fasting. The device was tested on 12 volunteers, with over 300 breath samples, and the results showed high accuracy, with readings closely matching laboratory device results and a limited margin of error of about 7.5%. The goal of the device is to make monitoring metabolic processes easy and environmentally friendly. It can be used to track individuals' responses to exercise, diets, and medications, with potential applications in treating obesity, diabetes, and therapeutic diets. Despite the promising results, the device requires further studies before it can be officially adopted in medical practice. It represents a step toward personal health devices providing immediate data to users.

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