For successful business owners & executives
Get your body back. Get your edge back. Perform at your best.
We help successful business owners and professionals optimise their body, health and energy so they can perform at their best in business and life, without making fitness their full-time job.
Free 1:1 call. No obligation. No sales pressure.
The Problem
A high-performing life, running on a low-performing health system
Your business has systems. Your finances have systems. Your team has systems. But most people are still running their health on willpower.
You already know broadly what to do. The problem isn't laziness or a lack of discipline. It's wrong information, no system, and the inconsistency that follows when travel, dinners and unpredictable weeks get in the way.
You don't need more motivation. You need a better operating system.
The Method
The JHF High Performance OS
Three systems working together, fully personalised to you, your schedule and your goals. High standards without unnecessary extremes.
Body Composition System
How you look. A clear, personalised plan to lose body fat and build a stronger, leaner physique, progressed on evidence rather than guesswork.
Energy & Performance System
How you feel and operate. Sleep, stress, training and nutrition set up to give you more energy, clarity and capacity every day.
Sustainability System
How it fits your life and lasts. Built around travel, client dinners and busy weeks, so you never have to start over again.
What You Get
Coaching, not a PDF you never open
Everything is built for you and adjusted as your life and training change.
Personalised training
Built around your schedule, experience and the equipment you actually have. Updated as you progress.
Nutrition guidance
Clear targets that survive work travel, family meals and a Friday night out. No banned foods.
Habit & lifestyle coaching
Sleep, stress, steps, alcohol and routine. The daily decisions that hold everything else together.
Progress tracking
Weight, measurements, training data and photos, reviewed properly instead of guessed at.
Accountability & check-ins
Regular reviews with video feedback, so nothing drifts quietly for six weeks before anyone notices.
Direct support
Direct access to your coach through our app between check-ins, for the questions that come up mid-week.
Real Results
1,000+ ambitious people who stopped starting over
Irfan, business owner
Runs a business with a large team. Lost 25lbs+ in 12 weeks training 3 times a week.
Cherie, online business owner
Travels regularly for work. Lost 14lbs in 8 weeks without her plan falling apart on the road.
Individual results vary. Results depend on starting point, consistency, training, nutrition, lifestyle and individual circumstances, and are not a guarantee of future results.
The Coach
Jack Hart
Jack is the founder and head coach of Jack Hart Fitness. Years ago he was working a job he didn't enjoy, with low energy, poor habits and no structure. Building a simple, repeatable system changed his body, his confidence and the rest of his life, and he's lost 25lbs himself along the way.
He built Jack Hart Fitness to help successful, ambitious people do the same, without the extremes and without starting again every few months. The approach goes further than losing weight: lasting change to training, nutrition, habits, mindset and lifestyle.
"Most people don't need another programme. They need a better operating system."
How It Works
From first call to lasting results
Book your call
Choose a time that suits you using our booking form.
Consultation call
We call you at your booked time to understand your goals, your schedule and what has held you back before.
Your High Performance OS
If we're a fit, your coach builds your plan and supports you with weekly check-ins, feedback and direct access.
Questions
Before you book
Do I need a gym membership?
No. You can train at home with minimal equipment, in a hotel gym or in a fully equipped gym. Your programme is built around what you have available.
How much time do I need each week?
Most clients train 3 to 4 times a week for 45 to 60 minutes. Your plan is built around your actual schedule, not the other way round.
Will this fit around travel, dinners and unpredictable weeks?
Yes. That's what the Sustainability System is for. When life gets busy we adjust the plan, rather than you falling off it.
I already know what to do. Why do I need a coach?
Most of our clients already know the basics. What they're missing is a personalised structure, accountability and feedback that turns knowing into consistent execution.
Do I have to give up the food I enjoy?
No. There are no banned foods and no crash diets. We set clear targets so you can still enjoy meals out and the foods you love while making progress.
How does the coaching work day to day?
Everything runs through a dedicated app: your workouts, targets, progress tracking and direct messaging with your coach, plus regular check-ins.
Is there a minimum commitment?
Yes. There's a minimum initial commitment so we have enough time to build lasting habits and real results. We'll go through the options on your call.
How We Contact You
Calls and text messages
We only call or text people who have requested a consultation and given their consent. We use your phone number to confirm and remind you about your consultation call, call you at your booked time, and, if you opt in, send follow-ups about our coaching services.
Message frequency varies. Msg & data rates may apply. Reply STOP to any text to opt out, or HELP for help. You can also ask us to stop calling you at any time. See our SMS Terms and Privacy Policy.
We never sell or share your mobile number or opt-in data with third parties for their marketing.
Ready to run your health like you run your business?
Book a free, no-obligation consultation call and we'll show you exactly how the High Performance OS would work for you.