Carb utilisation and ingestion on activities

[david]

Yes you can using custom activity streams:

Custom activity streams from fit file messages

Custom activity streams now support computing streams from fit file messages (not just record messages) using Javascript. Note that this cannot be used with the simpler “Record Field” streams but the process for creating the stream is the same: Tick the “Processes fit file messages” box and create a script instead of entering a record field name. [Screenshot 2023-08-11 at 07.21.32] This script just grabs the heart_rate data from the record messages: { for (let m of icu.fit.record) { …

Look at the fit file on fitfileviewer. com and look at the record messages. If it is a simple field you don’t need to write any JavaScript. You can just choose the field from the custom stream dialog.