Following the introduction of ResearchKit at this month’s Apple event, Apple executives Jeff Williams and Bud Tribble held a question and answer session with Apple employees regarding the new initiative, according to a source who provided a transcript of the conversation. Williams, Apple’s Senior Vice President of Operations, is the top executive in charge of Apple’s health engineering initiatives, including the Apple Watch, HealthKit, ResearchKit, and fitness software. Tribble is a Software Engineering Vice President with a medical background as a doctor, and he organized many of the partnerships for both HealthKit and ResearchKit…
The Health app lets you manually enter and view blood glucose values in mg/dL (milligrams per deciliter). This unit of measurement is used by a number of countries, while some other countries use mmol/L (millimoles per liter).
HealthKit supports both units of measurement. However, if you measure your blood glucose using a device that displays mmol/L, those values can’t be manually entered or displayed in the Health app with that unit of measurement.
To prevent confusion in countries where mmol/L is commonly used, we’ll soon release a software update that will temporarily remove the ability to manually enter and view blood glucose values in the Health app while we work on an update to support both units of measurement.
If you have previously entered values manually in the Health app, you’ll no longer see this data in the Health app after the update. However, your data won’t be deleted, and other apps with permission to read health data will still have access to blood glucose values that you previously entered.
Third-party apps will continue to be able to support both units of measurement and can continue to use HealthKit APIs to store blood glucose data.