If you are still not able to see your nutrition data populating in the Caliber app, you'll need to  check that you've granted Caliber access to receive data through Apple Health via the Health App. 

To check existing sharing settings between Apple Health and Caliber:

1. Open the Settings app.

2. Scroll down to find the Apple Health app and open it.

2. Tap Profile > Apps > Caliber > Turn All Categories On.