CHO/FAT Metabolic Pro¶

Technical documentation for the CHO/FAT Metabolic Pro data field for Garmin Connect IQ: it estimates carbohydrate and fat oxidation in real time during exercise from heart rate alone.

👉 Get it on the Connect IQ Store

• User guide — a plain-language explanation of what the data field shows and how to configure it. Start here if you just want to use the app.
• Theoretical basis — the estimation model itself: equations, parameters, scientific references. A self-contained document, independent of any implementation detail.
• How the app works — how the data field is implemented: architecture, resolving the physiological profile, performance, color coding, deployment to the watch.