I have linked my Apple Watch so why isn't any activity data showing in my Nutracheck diary?

There could be a few reasons – please check the following:

1. Ensure the Bluetooth on your phone is turned on so your Apple Watch data is syncing with Apple Health – this is where we pull your data from.
2. You may not have set permissions for Nutracheck to read data from Apple Health, or previous permissions may have been disabled. Open the Apple Health app and tap the profile icon (top right corner) > select Apps (under Privacy). Find the Calorie Counter + (Nutracheck) app in the list and check that all the data categories are enabled.
3. Your Apple Watch may no longer be paired or set as your primary source for Active Energy in Apple Health. Open the Apple Health app and tap Browse (bottom right) > select Activity > scroll down and tap Active Energy > scroll again and choose Data Sources & Access. Tap on the Apple Watch link and ensure there is data being recorded for the Active Energy data type. If no data is being recorded then the Privacy setting may be set to off. Change the privacy setting to allow the activity data to be sent to the Apple Health app.
4. If Bluetooth is enabled and all the settings above are correct, try completely resetting the permissions with Nutracheck. The easiest way to do this is to delete the Nutracheck app from your phone and reinstall it from the App Store. Don't worry you won't lose any data, just log back in as an existing member. Once signed in, tap More > Apple Watch to reset permissions.