At 41, chef Mike Denman weighed 150kg. By 45, his transformation had featured in Men’s Fitness. Now he shares the seven-step system he used himself — and has since used with hundreds of clients — to help men approaching 50 finally make it stick
Many men in their 40s feel it creeping on them for a number of years, and it gets to the point that they can’t keep kicking it further down the road.
I know exactly what that feels like. At 41, I was 150kg. I was working as an Executive Chef in a London restaurant group: high pressure, long hours, extremely demanding. However ,by 45, my transformation was featured in this magazine.
That kind of turnaround doesn’t happen without a clear and sustainable system, and when I started my own journey I couldn’t find one that looked like it would fit my life.
Everything out there seemed to have been written by 21-year-old personal trainers who’d been fit their whole lives, built for men with fewer commitments and more time.
So I built my own. I lost 50kg and I’ve spent the years since installing that same system for other men who are done waiting.
These are the seven steps I use with every client.
1. Find your ‘Why’
I’m going to start with the bad news. Simply wanting to get in shape isn’t enough. That may seem like an odd thing to say for a fitness coach, but I’m talking from experience.
The men who make this stick have a deeper reason to get in shape. The key to the whole process, and to avoiding the rebound, is to make this so important that failure isn’t an option.
The first thing I do with new clients is work through something I call the Five Layers of Why. I’m very aware this sounds like something you’d do on a wellness retreat in a forest somewhere, but trust me, it’s powerful.
You start with your surface reason for wanting to lose weight, then ask yourself ‘why?’ five times, going deeper with each answer. A weak reason like “I want to look better on holiday” can become something genuinely meaningful within a few rounds.
When you reach what I call your Big Why, write it down and put it somewhere visible. That’s the fuel that gets you out of bed when the motivation has gone.
2. Fix your environment
Before you pick up a dumbbell, sign up for MyFitnessPal or dust off your trainers, there is one more thing we need to do.
The environment you’re currently operating in is what has produced your current body, state of health and mindset. Every fitness influencer you’ve seen has told you that you need discipline not willpower.
Easy to say when you’re 22, live with your mum and have never had to make 20 high-stakes decisions before 11am.
Willpower is a finite resource, and by the time you get to the end of the day it’s largely gone. The man who wins makes the best choice, the easy choice. Our aim is to remove the requirement to use willpower altogether by engineering our environment for success.
The changes are simple: move calorie-dense snacks out of eyeline or remove them entirely, stock the fridge with food that moves you towards your goals, lay out your training kit the night before, plan lunch in the morning rather than deciding when you’re already hungry. None of these require willpower. They just require some planning.
3. Build a nutrition strategy you can actually live with
The fastest path to rebound is to ban all treats and avoid social events. Food presents real challenges for men with full lives, where eating well socially is part of how they operate.
Most restrictive approaches don’t account for that. What they also don’t account for is the pleasure debt: eating 100 per cent clean builds a feeling that you’ve earned a treat. That treat becomes a week off plan.
The first thing to remove from your thinking is the idea that some food is good and some food is bad. Food doesn’t have a moral compass. It’s a combination of carbohydrates, fats and protein, and some foods fit your targets in large amounts while others fit in small amounts. When you break it down into simple maths, you can remove the emotional attachment.
The practical approach is to track accurately for the first two to four weeks, get a clear picture of what your food actually contains, and then build your system from there. Some men track permanently. Some loosen up. Either works. Guessing indefinitely while wondering why nothing is changing does not.
4. Train for the body you want at 60 and beyond
Muscle is an engine that burns fat and keeps you functional as you get older. It is not a nice-to-have at this stage of your life; it’s essential.
Want to be able to lift your grandkids above your head? Put your suitcase in an overhead locker at 80? Get out of a chair without assistance at 90? You’ll need the muscle you build now to do any of those things.
Running, cycling and swimming are outstanding for heart health, stamina and longevity, but they are poor tools for building muscle and can actually result in losing it.
Cardio combined with resistance training is excellent. Cardio alone, not so much. The system I use is three full-body sessions a week, each around 45 minutes. Full body every time means a missed session doesn’t leave an entire muscle group untrained for the week.
If you’re new to training starting with resistance bands and bodyweight is a good idea, you need to build capacity in the joints to handle heavier weights. Add your cardio on top as a bonus, not as the main event.
5. Build systems for sleep and stress
You can’t out-train or out-diet poor sleep and high stress. For a man with a demanding life, perfect sleep and zero stress is a pipe dream, the goal isn’t to eliminate stress, it’s to manage it.
Cortisol isn’t just an influencer buzzword. Chronically high cortisol increases hunger, stores fat around the abdomen, reduces recovery and wrecks sleep.
The cortisol cycle is the trap: high stress leads to poor sleep, leads to poor food choices, leads to poor training and recovery, leads to weight gain and reduced stress tolerance, leads back to poor sleep. Breaking one part of that cycle breaks the whole thing.
My favourite entry point is a simple two-column list at the end of the day: things I can control, and things I can’t. The first column is your to-do list. The second column isn’t worth catastrophising over.
On sleep: quality matters as well as quantity. A wind-down routine that starts an hour before bed makes a measurable difference to how deeply you sleep. Write tomorrow’s list so it stops cycling through your head, pack your gym bag, switch off screens and give your brain a reason to power down.
Sleep is very often the missing piece in the fat loss and muscle-building puzzle, and it’s the one most men dismiss because it doesn’t feel like doing anything.
6. Close the identity gap
Being ‘on a diet’ rarely sticks. Becoming a man with a healthy lifestyle always does. The reason most previous attempts to get in shape have failed likely has less to do with commitment than it does with identity.
Your self-image hadn’t caught up with the behaviour you were trying to sustain. For as long as healthy eating feels like a diet or a health kick, it’s still the old you talking. The old identity pulls you back, and it always will, until you change it.
The shift is from doing healthy things to being a man who lives healthily. You need to become the man who eats well and trains regularly. You need to talk like him, think like him and, most importantly, act like him, until it stops being an effort and starts being just how you live.
I’ll tell you something honest: even five years in, I still have a trigger that fires in my brain every time I walk into a petrol station that says buy a sausage roll. The old neural pathways don’t disappear.
Your brain wants you to be comfortable and wants you to maintain a good store of fat, just in case the food runs out. That wiring is from our evolutionary ancestors, for whom running out of food was a genuine daily risk.
It’s not designed to protect you from starvation if Waitrose runs out of hummus. Your identity is what overrides it. When your brain says don’t train today, you’re tired, or tells you that you’ve earned a takeaway, it’s your identity that tells it to be quiet.
7. Track, adapt and own your system
When most men are losing weight they weigh themselves obsessively. Then they either reach a goal or abandon the attempt, and the tracking habit fades away. A few months later, they jump on the scales, and most of the weight has returned. The tracking habit needs to be permanent, not conditional on whether things are going well.
If you can detach yourself from the daily fluctuations and focus on weekly averages, I’d suggest weighing every day. It produces smoother data than weekly weigh-ins. If the number going up overnight derails your mindset, bi-weekly weigh-ins or waist measurements can work just as well. The method matters less than the consistency.
The broader point is this: the system in these seven steps works for the vast majority of men approaching 50, but your schedule, your stress load, your food preferences and your training history are all specific to you.
The framework is the starting point. Personalisation is what makes it yours. Can’t train three times a week? Cover the key elements in two sessions. Travel constantly and eat in restaurants? Build a plan for that. Struggling with cravings, time or motivation? Identify what’s actually driving it. That’s where the real work is, and it’s where the results become permanent rather than temporary.
Mike Denman is a performance coach and founder of the Mike Denman Fitness Performance System. At 41 he weighed 150kg. His transformation was previously featured in Men’s Fitness at age 45. He now coaches men through 1-1 personalised coaching programmes.
