Privacy policy
Last updated: 18 October 2026
MK Body Lab is an online coaching service run by Mohamed Karim. This page explains what personal data we collect on mkbodylab.com and in the client area at app.mkbodylab.com, why we collect it, and what you can ask us to do with it.
What we collect
When you ask for a consultation on this site: the details you type in the form, such as your name, contact details and your goals.
When you are a coaching client and use the client area:
- Your name, email address and profile photo.
- Your training plan and the workouts you log (exercises, sets, weights, cardio).
- Your meal plan and the meals you check off or swap.
- Your weekly check-ins, including body weight, measurements and the notes you write.
- Progress photos, if you choose to upload them.
- Recovery and activity numbers from your watch or ring (for example sleep, resting heart rate, steps), only if you choose to share them.
- Chat messages between you and your coach.
Apple Health
If you use the MK Body Lab iPhone app and allow it, the app reads these numbers from Apple Health: sleep, resting heart rate, heart rate variability (HRV) and steps. They can come from an Apple Watch or from other devices and apps that write to Apple Health, such as WHOOP, Oura, RingConn or Garmin.
- The app only reads this data. It never writes to Apple Health.
- The numbers are saved in your client area so that you and your coach can follow your recovery and adjust your plan. Nobody else sees them.
- Health data is never used for advertising or marketing, never sold, and never shared with anyone other than the service providers listed below that store it for us.
- You can stop at any time: in the app tap "Stop sharing", or turn off MK Body Lab in Settings > Health > Data Access & Devices on your iPhone.
Notifications
If you allow notifications in the iPhone app, we save a technical address for your phone so we can tell you when your coach sends a message, and so you get the daily reminder you choose. You can turn notifications off at any time in your iPhone settings.
Some of this is information about your health and body. We only collect it because you give it to us for your coaching, and you can stop sharing any optional part at any time.
Why we use it
- To answer your consultation request.
- To build, adjust and follow up on your training and nutrition plan.
- To let you sign in to your own page with your email.
- To keep the service secure and working.
We do not sell your data, and we do not use your coaching data for advertising.
Who can see it
Your coaching data is visible to you and to your coach. Other clients cannot see your page. The client area is invite only: only an email your coach has added can sign in.
We rely on a small number of service providers to run the site and the client area. They process data on our behalf:
- Supabase: database, sign-in and file storage for the client area, hosted in the European Union (Frankfurt, Germany).
- Netlify: hosting of the website and the client area, and delivery of the consultation form.
- Resend: sending the sign-in and new-message emails.
- Apple: delivering notifications to your iPhone, if you allow them.
- AI assistant tools: your coach may use an AI assistant (Claude, by Anthropic) to help review progress and prepare plans. Your coach stays responsible for every plan you receive.
Cookies and tracking
The public website mkbodylab.com uses the Meta Pixel to measure how visitors use the site and how our ads perform. The client area at app.mkbodylab.com does not use advertising trackers. It stores only what is needed to keep you signed in.
How long we keep it
We keep your coaching data while you are a client. You can delete your account yourself at any time in the client area (at the bottom of your page, "Delete my account"). This deletes your profile and everything attached to it straight away. You can also ask us by email. Consultation requests that do not lead to coaching are deleted within 12 months.
Your choices
You can ask us at any time to:
- See the data we hold about you, or get a copy of it.
- Correct something that is wrong.
- Delete your data.
- Stop sharing watch data or progress photos.
Write to contact@mkbodylab.com and we will answer within 30 days. Depending on where you live, you may also have the right to complain to your local data protection authority.
Security
Connections to the site and the client area are encrypted. Access to client data is restricted by account, and sign-in uses a one-time code or link sent to your email instead of a password.
Age
The service is for adults. If you are under 18, please use it only with a parent or guardian.
Not medical advice
Coaching from MK Body Lab is fitness and nutrition guidance. It does not replace advice from a doctor.
Changes
If we change this policy, we will update this page and the date at the top.
Contact
MK Body Lab · contact@mkbodylab.com