Body Composition
Losing body fat while maintaining or building lean muscle. Not simply becoming lighter - becoming stronger, leaner and more athletic.

Body transformation coaching for business owners, executives and professionals who don't have hours to spare - built around your schedule, not against it.
Most fitness and nutrition advice was never built for a diary like yours. This is.
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Heather Mack is a personal trainer and nutrition coach based in Plymouth, working with business owners, executives and professionals across Devon, Cornwall and the wider South West - and supporting clients UK-wide and beyond through online coaching. Before qualifying as a coach, she spent years in business development for a leading South West law firm, so the reality of professional life is familiar territory: early networking breakfasts, working lunches, corporate hospitality, late events, long hours and constant competing priorities.
That experience shapes how she coaches. No generic meal plans, no punishing cardio, no cutting out everything you enjoy - just an evidence-based, genuinely personal strategy you can follow consistently around a demanding career. The clients who get the best results aren't the ones who are perfect; they're the ones who implement the right actions, consistently. That's the idea behind the name - a deliberate pause to invest in yourself, before the demands of everything else take their toll.
Personalised training, practical nutrition, evidence-based supplementation, accountability and lifestyle - everything tailored around your schedule, preferences and goals.
Losing body fat while maintaining or building lean muscle. Not simply becoming lighter - becoming stronger, leaner and more athletic.
Feeling energised throughout the day instead of relying on caffeine to get through back-to-back meetings.
Looking in the mirror and liking what you see again - and feeling confident in business, on holiday and at home.
Building a body that supports you for decades to come. A stronger body creates a stronger future.
Eating in a way that supports your goals without obsessively tracking every calorie - or giving up client dinners and the occasional glass of wine.
Using the right supplements for your specific needs, goals and lifestyle - rather than wasting money on products that don't deliver.
You don't have hours for the gym or time to meal-prep six times a day - and you shouldn't have to give up client lunches, networking, business travel or the occasional glass of wine. We build a sustainable strategy that works with your life, not against it. No generic meal plans, no endless cardio, no cutting out everything you enjoy.
A simple, low-pressure process. No pushy sales, no commitment until you're sure it's the right fit.
Call, message or use the form below. A quick note on where you are and what you want is plenty.
A relaxed, no-obligation conversation about your goals, your schedule and what has (and hasn't) worked before.
A tailored programme of training, nutrition and supplementation, built around your diary and your targets.
Regular coaching, check-ins and adjustments as you get leaner, stronger and more confident - for the long term.
Real clients with real diaries. Names shortened at their request; roles and ages shared with permission.
The only plan that actually accounted for my calendar and travel schedule.
Before working with Heather, I was stuck in a vicious cycle. I was waking up at 5:30am exhausted, running on black coffee, trying to squeeze in intense cardio, and feeling frustrated when my body held onto weight around my middle. With regular travel between London and Zurich, generic meal plans and fixed training times fell apart by day four.
Heather built a 1:1 strategy that treated my life like reality, not a fitness fantasy. We built 30-minute sessions I could execute in hotel gyms, prioritised progressive lifting, and established clear guidelines for ordering at client dinners without feeling deprived. Six months later, I've gained significant lean muscle, my sleep is unbroken, and I have sustained energy for 12-hour days. Having an expert in your corner who understands executive life and midlife hormones is worth every penny.
A bespoke strategy that respected my schedule, my travel, and my Friday martini.
As a VP with back-to-back board meetings, weekly business travel, and a relentless calendar, generic plans never lasted more than two weeks. Heather built a system around my actual life: 35-minute hotel gym workouts when on the road, quick strength sessions at home, and nutrition tailored to my food preferences and client dinners.
My non-negotiables stayed intact, yet the perimenopause midsection puffiness is gone, my energy is steady all day, and I look sharp and confident in my suits again. It feels like having an executive performance coach in my corner.
No cookie-cutter macros or unrealistic gym hours, completely tailored to my realities.
Between running a business and navigating unpredictable perimenopause symptoms, I had zero mental bandwidth left to figure out fitness. Heather took total ownership of the plan. She eliminated everything I hated (no burpees, no restrictive meal plans) and designed workouts around the exact equipment I had and the 40-minute windows I could spare.
Her direct 1:1 guidance and weekly adjustments kept me accountable through my busiest quarter yet. I'm lifting heavier than I ever thought possible and sleeping through the night.
Programmes are built around a full diary, not a fantasy one. Most clients train just a few focused sessions a week, and nutrition is kept practical - no hours of cardio and no meal-prepping six times a day. The aim is the most result for the least disruption to your work.
Yes - that's the whole point. Coaching is designed around real professional life: working lunches, corporate hospitality, business travel, late events and the occasional glass of wine are all factored in, not banned. You shouldn't have to choose between your career and your health.
No. The approach is sustainable, not punishing. You'll learn how to make room for the things you enjoy while still moving steadily towards your goals. Extreme diets and detoxes don't last - strategic habits do.
In and around Plymouth, with travel possible to nearby towns including Plympton, Plymstock, Ivybridge, Tavistock and Kingsbridge in Devon, and Saltash, Torpoint, Liskeard, Launceston and Bodmin across the Tamar in Cornwall. Clients further afield in South Devon (Newton Abbot, Totnes, Teignmouth, Torquay, Paignton) and East Devon (Exeter, Exmouth, Sidmouth, Honiton, Ottery St Mary, Cullompton, Crediton) are equally welcome - and those who travel a lot usually work with Heather online instead. Exact location and arrangements are confirmed when you get in touch.
You'll get a structured programme delivered through a coaching app, with video demos for every exercise, weekly check-ins and direct messaging access to Heather. Workouts flex for hotel gyms, home or a full gym, minimal kit or full kit - built to survive travel and unpredictable weeks.
Start with a free, no-obligation chat. Ask anything, see whether it fits around your life, and decide afterwards. No pressure, no hard sell.
Send a message, give Heather a call, or drop into the DMs on Instagram. However works best for you.