I think there should be a Soylent app that can share nutritional data to the health app. I would love to be able (once I get my Soylent) to tell the app when I’ve had each glass of Soylent, and it share all the nutritional data with the health app.
I’ve been using MyFittnessPal to track everything. It’s supposed to integrate with Apple Health, but I think there is a bug and they will be fixing it soon.
It’s being discussed here http://discourse.soylent.me/t/soylent-health-tracker-app/16161
Apple just put out an update to iOS 8. Hopefully this will fix the Apple Health app issue