From version 11.3.0 you will be able to use Siri for tracking the following:
 
- water
- recipes
- weight
 
You can use Siri from any iOS device (Apple watch, iPhone, iPad) that can be updated to version 11.3.0
 
Siri for tracking water
 
You will get the option to activate Siri for tracking water for the first time and have the possibility to customize the shortcut ("When I say")


To change anything about this feature go to the water setting.
 


Siri for tracking recipes
 
As soon as you are favoring a recipe by clicking on the heart of the recipe card for the first time you will get the option to activate Siri for tracking recipes as follows:





When you track the recipe with Siri you will get directed to the recipe and can click the button to track it. 

Siri from Apple Watch

At the moment you can only track water from the Apple watch.