Tap on any of these third-party apps and you’ll see a list of all the different types of information that each app can store, and which can be shared with your Health app.
The Lifesum app primarily focuses on dietary information, so the list of information that it records includes details such as your body-mass index (BMI), your daily calorie intake, and even quantities of specific food types such as fats and sugars. Each individual data item has a switch that allows Lifesum to send – or ‘write’ – that information into Health, so you can tell it to ignore potassium intake and just focus on sugar and fat.
And, of course, other apps can record different types of data. The Nike Running app can monitor your heart rate during exercise, while iHealth can monitor blood pressure and sleeping patterns.
In the US it’s already possible for some people to share information with their doctor or hospital – but it might be a while before those of us in the UK can send health data to our local NHS doctor.