Fitness App - PT customer page

I'm working on a personal project for a while, an app for personal trainers and their customers to work together, track workouts and nutrition together. It's an ongoing project, it's constantly changing a bit. I mostly do it because I think there's no good app currently out there which does this (at least from what I know, maybe I'm wrong) and I'm interested in the area. Currently, I'm working on IA, UX, and UI at some point I might start coding it or find someone who can help me, or it might just remain a concept only.

This page shows the customer detail, where the personal trainer can track sessions, nutrition (customer marks meals as eaten, PT can create recipes and meal plans for the customer), workouts (PT can plan workouts and track progress).

Some previous views can be found here (all WIP mocks, which changed a bit since then).
https://dribbble.com/shots/5304197-Health-and-Fitness-app
https://dribbble.com/shots/6257261-Workout-App

Will post more as I move forward with the project