Yes. With a Carb Manager Premium account. Once synced, Carb Manager will be able to add calories burned, minutes of activity, how many steps, current weight and sleep data.
Carb Manager also exports nutritional information to your Fitbit.
In order to connect your Fitbit, follow these steps:
Click on Settings
Scroll down and select Fitness Device Links
Select the Connect With Fitbit option and turn to ‘On’
This will then redirect you to the Fitbit website where you’ll be prompted to give Carb Manager permission
Once you allow permission, you’ll be redirected back to the Carb Manager website to finalize connection and data should begin importing automatically