Import existing data into iOS 8 Health
We recently released a new app that is dedicated to importing data from CSV (comma separated value) data files which covers many formats of exported data from existing apps.  It will allow you to import data from apps that have an export feature, but are not yet integrated into HealthKit / Health App.  

If this is a feature you are still curious about, please check it out on the App Store at:  https://itunes.apple.com/us/app/health-importer/id930943780?ls=1&amp;mt=8