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Podcast Host
The thing I think about most, especially when I'm on the go, but also when I'm sat here in the diary of a co studio is the WI fi and Internet that we have to work with. In fact, anytime I'm filming away from the studio, one of the first things I do is when I arrive, I open up an app and do a speed test to see how strong the signal is. And the number of screenshots I've sent to my team about WI fi signals at different locations is actually pretty crazy. It matters that much to me because it's such a competitive advantage to have fast WI fi because on any given day, if I'm recording, let's say, hours and hours of footage with a podcast guest, I then often have to have my team send that across to our London team who then do the edit. So fast. WI FI and Internet is not nice to have. It is absolutely business mission critical. So when it came to finding the best provider who could supply Internet and WI fi to our new LA studio, which I'm sat in right now, we looked at every single option. And of all the providers, the one that came back with the steadiest connection as well as being the cheapest, was today's sponsor, Spectrum Business. Spectrum Business keeps businesses of all sizes connected with fast, reliable Internet, advanced WI fi, phone, TV and mobile services. Millions of business owners already rely on Spectrum to keep the their operations connected. So if you want to join them, head to spectrum.combusiness to learn more that spectrum.com business restrictions apply. Service not available in all areas. I've definitely grown up my whole life thinking that the way that you burn fat is by running. I mean, this is what most people think, right? They think you want to burn fat around here, the belly fat. The best way to do is go for a run and a lot of people have very little luck with that and end up beating themselves up. So to close off on this conversation, I'd like to hear your take on that.
Health and Fitness Expert
You need to think about fat loss in a broader approach than most people give it to. Which is to say, when you say fat loss, let's get specific. What we're meaning is we're losing fat and ideally we're preserving muscle. That's what we typically want. Okay. We're also talking about losing fat so that it stays off as long as possible. Those are baked in to that phrase, but oftentimes forgotten. So the advice I'm going to give you is with those two assumptions in mind, you're trying to keep as much lean, mass as you can. And you're trying to make this a successful journey and not something you have to repeat again time and time. Totally right? Yo yo dieting. In fact, one of the more, probably the highest, most cited paper I've ever published was on yo yo dieting. Like a review article on that. So you can go read that. People love that paper. I was just a co author. Jackson wrote that paper. So credit goes to Jackson for that. But making sure you're paying attention to, say, those parameters in mind. How do I lose weight? You can look across meta analyses and review articles and you will see the number one predictor of long term successful weight loss. And by weight loss, I mean fat loss is always adherence. It's adherence to your workout program and it's adherence to your nutrition program. So step number one, before we worry about any change in diet, we sort of start arguing about which method of exercise is best before we start really going way down the line to things like genetic testing. Like, you're really wasting your time here and a lot of that stuff. Especially if you're not paying attention to what's going to make you adhere the longest amount of time. In fact, if you just stopped right there, that's enough for most people. Can you put yourself in a position where you're able to feel abundant with your nutrition approach? And notice I'm, I'm trying not to say diet here. Right. Should be a nutritional approach. You have a balance between living life and flexibility, but then also figuring out what triggers you. And maybe you don't have a trigger. Maybe you can be more flexible, maybe you need more stringent, like all the things that go into it. You got to figure out a system so you're not. People will not be on a diet very long collectively. Right. On average, diets don't work quote, unquote for those exact reasons. Right. You got to get to a caloric deficit somehow, but you got to do that in a way where you still are happy and sustainable. Totally. Right. And you still feel energy and you're there and that it's working for you. Right. And that's different for every physiology. Okay, great. And you gotta meet the exercise system the same thing. Right? If you hate running, there's no reason you don't have to run a step to lose a ton of weight. If you love running, you should run. If you hate lifting weight, fine. I can work with any parameter you give me. If all we're concerned about is preserving lean muscle mass and losing fat over the long term, that's really what we have to consider the most. Okay, now, within that, does that mean every training and nutrition program is the same? No, no, no, not at all. There are fundamental differences. Here's the problem to think about. If I said, hey, you're going to do the same training program the rest of your life, you'd probably be like, whoa. But if I told you that with nutrition, people are like, well, yeah, of course. Like, there's, you know, magic diets that do, like, no keto, great, Mediterranean, great, high carb, great, great, great. You can do them all. They can all work for you. Some people taking on gluten helps. Some people, great, great, great. Sure. All of it is possible, right? We come from very different backgrounds. If you look at any of the research, for example, like a really interesting point on genetic testing, if you're not taking account genetic background on that, genetic testing for things like nutrition, precision nutrition is entirely worthless because we see classic markers that are associated with, say, more effective carbohydrate utilization or fat utilization or body composition, and they might predict a decent percentage of variance. In European Caucasians. You apply those exact same things to a West African or East African and those variants go to zero. People forget that part when they start talking genetic testing. They have not been validated across all, all ethnic backgrounds. And the ones that have have shown they range from like 40% variance to zero. So, like, really, like, you're way, way, way ahead of the cart here, paying attention to things that just do not matter. We gotta get you on a system that works. Okay, great. For some people that might be more nutritionally based. All right? You can lose and preserve muscle mass really well by just going decently high on protein and then regulating your calories. The example I gave you earlier, you want to go more carbs, less fat, great. You want to do the opposite. Like, we can play those levers, no problem. All right, what's your problem, though? Oh, I struggle with cravings. Okay, great. Oh, I struggle with hunger pangs. Okay, great. I struggle with. Okay, well then we're going to make those decisions based on more of this, more that. Based on, like, where is your pain point? What's your problem? I struggle with the. Okay, great. I have to. Now we're personalizing. Now we're individualizing it based on things that are going to matter orders of magnitude more than other things that I've just talked about. Right. That stuff will trumpet exercise the same thing. Maybe you hate exercise. Okay, great. Maybe we can get you to walk a few times a day and we'll get most of our fat loss through nutrition. Maybe the opposite. You love training, but man, you just struggle to eat whatever or not eat something. All right, great. Maybe we'll play the game more with, you know, willpower will push the pace on our exercise. High intensity, fine. Low intensity, fine. Weights great. Cardio's great, Surfing great. Like don't zone six to. I don't care. All of it can be done. Okay. Some of the foundational things that tend to be consistent for those two things on most people is you need to make sure protein is adequate. Hard to maintain muscle mass with lower protein, especially if we're going hypocaloric. So keep protein high. You want to do something revolving strength training at least once a week for the same exact reasons. Something that makes you burn a lot of calories. Long duration, high intensity. Either way, that's all you really have to do. If you can do that stuff consistently over time, you're going to get there, you're going to be just fine. Where we see problems are people that put themselves in a position of scarcity.
Podcast Host
What do you mean by scarcity? For anyone that doesn't know, depriving themselves.
Health and Fitness Expert
Of deprive, you feel like you never get to do the thing you want to do.
Podcast Host
This is a psychological thing, right?
Health and Fitness Expert
Totally.
Podcast Host
Which causes the yo yo effect, which.
Health and Fitness Expert
Causes the problem of consistency and inheritance over time.
Podcast Host
Right.
Health and Fitness Expert
So making sure you do that. I personally have some go to standards I like to do. I'll happily share that with you. Um, I tend to like to have a decent balance between kind of our anaerobic strength training, high heart rate stuff and our more steady state longer duration stuff. So if someone's going to be able to work out three times per week, I'm probably doing one thing where we're going long duration. Call it a hike, call it a swim, call it a run, whatever we can do. And then the other two days I'm probably doing a combination of lifting and then probably finishing with some high heart rate thing. Right. So we'll do like a little bit of strength and hypertrophy, muscle growth work and then we'll do a circuit or an aerosol bike or some sprints or like what can we get you into is like really, really hard. If I can get you in an environment where you're working out with some other human, I love that.
Podcast Host
Is there any reason why you do the strength first and then.
Health and Fitness Expert
Absolutely, that's a great question. If you do strength training before endurance work, your strength training will not compromise your endurance. In fact, sometimes it exacerbates it. If you do your endurance first, you're going to be more fatigued and you're going to lose strength and so you'll have worse performance in your strength training.
Podcast Host
What's the most important thing we haven't spoken about? You know, if there was one more thing you could add of all the things you know that would allow Jennifer, who's a 34 year old single mother, or Dave, who's a black cab driver in London, the average person, I think.
Health and Fitness Expert
It is exciting what's coming in the world of human health and I think it's helpful for people to know that stuff because a lot of the challenges we're facing are going to get worse. We have things that are going to be possible pretty soon. Kind of the stuff I'm talking about, this idea of precision exercise, precision nutrition, it's not really available to many people, too expensive, et cetera. We're going to cross those barriers pretty soon. We are working on a project right now called the Human Digital Twin. So this is a combination of a couple of my companies. So the sleep company, Absolute Rest, our blood work company, Vitality, Blueprint, Springbok, there's another company called Axioforce that actually has four sensors in your shoe and we can see early changes potentially in gait, so how you're walking, which could potentially and research is needed here, but potentially be early signs of Parkinson's development, neurological disorder. So we'll see this in gait before we'll see this in symptoms. Companies that are involved in this entire thing, we can take all those data, we're actually doing this right now, put them together and make what's called a digital Twin. This allows us to make your physiology. And so from our perspective at Vitality, we've got all your blood work and molecular biomarkers from Absolute Rest, we've got your sleep, we've got your movement patterns. We can actually work with another company to watch you physically move and do that stuff. We can take your physiology and upload it. Then from there we can run endless simulations of combinations of nutrition and training and supplementation, medicine, movement, daytime patterns, sunlight, water, all those things and figure out really quickly how you're going to respond the best for whatever outcome we want. It's not ready at all right now, but we're actually again running it right now. We'll have our first cohort done probably in the next week or so. Really, really soon. I don't know how well the model is going to be the first time through it. I don't know if our group's going to be the best at it. It doesn't matter. But this is clearly going to be something the world is capable of. As we get better at being human sensors and we can bring those data in, we're going to be able to deploy things like this and say, hey, yo, this is most likely to work for you. The digital twin is already being used for, like, the heart. It's in place. We have the digital twin. The kidneys as well. The lungs are coming soon. The heart is coming pretty soon. There's lots of groups. I'm not involved in any of those projects, but that's coming on board. So the ability to not have to guess anymore and most importantly, try. I tried this for six weeks. It didn't work. I tried this for. That's going to go away really fast. Great. You still have to go do all the work. The technology won't work out for you. Well, we have some stuff that'll do that too.
Podcast Host
What's the cost, though? Like when you were saying all of that, I go, do you know what I mean?
Health and Fitness Expert
We spent the entire length of human history with one, maybe arguably two singular goals. One of them, at the core was stress reduction. That was what we're after. Right. You create communities, so you're safer. You create homes, so you're environmental, and you create agriculture. So our food. And we all wanted to reduce the stress thing, right? We didn't call that, but that's what it was. And then we got to the year 2000 or so and we realized, oh, fuck, maybe that was the wrong target.
Podcast Host
I saw on your bookshelf at home, there's a book called the Comfort Crisis.
Health and Fitness Expert
Oh, yeah.
Podcast Host
And that just flashed in front of me as you were saying that.
Health and Fitness Expert
Yeah. Shout out, Michael. It's a great book. When we have astronauts come back from the International Space Station, getting people to live on Mars, it's a bit of a rocket problem, but it's a bigger physiology problem. And this HDT project, Marwan, is part of the people we're working with is Cody Burkhardt, who runs Human Works at NASA, figuring out that line of going, hey, you don't want to release stress. If you do, like, what happens when we send people up to space because there's no gravity, your physiology tanks really quickly, right. They come back. Oftentimes astronauts come back and they can't physically walk for a few days. Because in that case, that aspect. Now, other aspects of stress are way up. We've lost some of the core tenets. That it means to be human. And we are not ready for that. We are not ready at all to be able to be told, oh, yeah, we're on this scan. And here's the exact combination of life you need to run. Not even counting the ethics behind all that. Like the ethics of genetic testing alone are really, really interesting, to say the least. The ethics of doing something like that. We have not thought through this stuff, right? And collectively, we. There is more in our world than our human experience than just straight answers. Right. This is one of the beauties of this ride we get to take. I don't know if we have good answers. I think we've clearly shown we're not very good at asking those questions before.
Podcast Host
Never. Because the incentives in the short term are so tempting. We're seeing this with AI at the moment. It's just so tempting. And then we figure we get the results back in 20 years, and by then it's just too late.
Health and Fitness Expert
I mean, look at the current health position that we're in. Right? We went after that entire idea of minimizing as many stressors as we possibly could, and, oh, we. It worked.
Podcast Host
Yeah.
Health and Fitness Expert
Oops. Now we have to go back and do this weird thing where we re engineer stress back into our lives. You have to be very careful and judicious when you pull things out of a natural state. I'm being very choosy with my words there. If you're not directing stress, you're letting something else direct that that stress is still coming one way or the other, which means adaptation is coming. So you can be intentional and point that ship in one direction, or you can cover your eyes and think it's not happening at all and realize you're getting pointed somewhere else. It's better to at least have the acknowledgement. This is why the word consciousness is in the title of my book. It's. This is part of the process. Right. You can be aware of it or you cannot. From there, you can choose whatever you want. That's entirely up to you and all that. I just want people to realize you're making a choice one way or the other. So when you involve technology into the picture, AI is another really, really challenging thing in a lot of ways. And I'll reiterate, we've seen this already play out and we know the answer is this gets worse in terms of we're not going to make very good choices right away. How does that manifest itself in the end? I don't know. Nobody knows. But to date, we're not particularly good at making that decision. So there's lots of consequences there. I think that we have there. One of the last things I'll say on this is if you break down, okay, the way that we structured is there's four pieces, okay? In order for you to have more success at your performance and health, you, number one, have to have assessment. Once you have all this data, you have to go to step number two, which is in. You have to qualify good, bad, great, worst ever, best in world history. Okay, we're struggling on that. We don't know what healthy looks like. I know what clinically deficient rickets looks like. I know what obesity and type 2 diabetes. We know disease. We don't know what good versus great means. There are no databases I can pull from. There is no metric I can look at and say, what is a great comp. What's a great vertical jump number? What does somebody need to be able to jump in their 40s to be healthy? We don't know these things. And I don't know it by ethnicity. And I mentioned that before, that's a critical component because it is clearly different. There are some markers in basic blood chemistry that are not different in Southeast Asians or that are different in Southeast Asians versus Northern Europeans. Like, we don't have that fully fleshed out. And we. If we do, it's four disease markers. We don't have the. So I don't even know what I'm judging. Okay, now assessment, great. Where are we going to get these databases of super healthy people? As the world continues to get less healthy, I'm losing my population to pull from really, really quickly. Okay, then the next piece is, okay, great, you've told me that this marker should be here. Pick your marker, whatever you want. How do I get it there? And that's really where we're struggling. So the second problem is what I call Polaris. Like, we have no North Star. We don't know where this thing should go. The third one is, okay, how do I get there? What is the intervention? What is the thing? That's where I actually think people in my field are going to not only maintain but increase their value. Such as, like personal coaches, physical therapists, athletic trainers, people that are gonna nurses. Because you might have an AI that can come in and run something and say, great, your numbers are here. And our metrics say, you should be here and then you should go do X. I want somebody there with me. I want a human taking me through X. That's gonna feel better. Because we don't know, there's almost no data on, okay, great, well, what is the optimal training for that marker? What is the optimal nutrition? Or that is really, really limited. So we have to rely on expert, we have to rely on people that go, I know the evidence base. But then also in my experience, I'm thinking about this this way. If you were an NFL quarterback and you tore your ACL and we ran all that stuff on you, you would still come back and go, oh great, there's a coach over there who's actually run people through ACL recoveries on 15 starting NFL quarterbacks. Like, what's it going to cost? You're hiring that person, right? Because like you've done it before. Fantastic. Like the budget doesn't matter at that point because the person's actually done it and they will be there. Fantastic. I really feel like our field is going to increase in the value because of that. They're going to want to say, okay, awesome. The numbers came out on this. The AI told me this this year. You've done it before? Yeah, done a lot. Great. I trust you the most. I want you by my side. I want that companionship as we lose more and more connection to other people. It's my biased opinion in my field that like this is a great place where people want someone there. Online coaching is great, that's fine and all that, but you're seeing actually already a premium coming on. Like, you know, I want to hire an in person trainer. Can you give me that person? Where like the boom was the opposite for a while and now it's already swinging back where people would rather have somebody there in person for all those reasons. So that is, I think, an incredibly interesting challenge. But that's, that's the way to think about it. That top one's gonna get better. Lots of problems, but what are we comparing against and then what do we do about it? That's gonna be the real trick.
Podcast Host
What you just listened to was a most replayed moment from a previous episode. If you wanna listen to that full episode, I've linked it down below. Check the description. Thank you. The thing I think about most, especially when I'm on the go, but also when I'm sat here in the diary of a co studio is the wi fi and Internet that we have to work with. In fact, anytime I'm filming away from the studio, one of the first things I do is when I arrive, I open up an app and do a speed test to see how strong the signal is and the number of screenshots I'VE sent to my team about wifi signals at different locations is actually pretty crazy. It matters that much to me, but because it's such a competitive advantage to have fast wifi, because on any given day, if I'm recording, let's say, hours and hours of footage with a podcast guest, I then often have to have my team send that across to our London team who then do the edit. So fast wifi and Internet is not nice to have. It is absolutely business mission critical. So when it came to finding the best provider who could supply Internet and wifi to our new LA studio, which I'm sat in right now, we looked at every single option. And of all the providers, the one that came back with the steadiest connection, as well as being the cheapest, was today's sponsor, Spectrum Business. Spectrum Business keeps businesses of all sizes connected with fast, reliable Internet, advanced wi, fi, phone, TV and mobile services. Millions of business owners already rely on Spectrum to keep their operations connected, so if you want to join them, head to spectrum.combusiness to learn more. That's spectrum.com business restrictions apply. Service not available in all areas.
Podcast Summary: The Diary Of A CEO – Most Replayed Moment: The Fastest Way To Lose Fat Without Losing Muscle!
Podcast: The Diary Of A CEO with Steven Bartlett
Guest: Dr. Andy Galpin (Health and Fitness Expert)
Episode Date: January 30, 2026
Segment Covered: 01:40–20:50 (Core Content)
Steven Bartlett sits down with Dr. Andy Galpin to unpack one of the most commonly misunderstood facets of health: the fastest, most effective ways to lose fat without sacrificing muscle. The conversation dispels myths about fat loss methods, explores the psychological and physiological hurdles people face, and peeks into the future of individualized health and technology.
Main Takeaway:
Fat loss plans should focus on sustainability and preventing muscle loss, not just dropping pounds quickly.
Notable Points:
Dr. Galpin’s pillars:
Key Insight:
Problems arise when people approach fitness from a place of scarcity or psychological deprivation, leading to the “yo-yo” effect.
Ethical & Social Dilemmas:
Widespread adoption raises big questions about the human experience, privacy, and the ethics of life-design by data.
Four needs for advancing health performance:
Dr. Galpin: “We have no North Star. We don't know where this thing should go… There's almost no data on, okay, great, what is the optimal training for that marker?” [18:45]
AI and digital solutions won’t erase the value of in-person coaching and human connection. In fact, demand for personal trainers and real support is rising as technology advances.
On adherence:
“The number one predictor of long-term successful weight loss… is always adherence.” – Dr. Galpin [02:50]
On individuality:
“If you hate running, there’s no reason – you don’t have to run a step to lose a ton of weight.” – Dr. Galpin [04:41]
On technology’s promise:
“We can take your physiology and upload it... and figure out really quickly how you’re going to respond the best...” – Dr. Galpin [11:38]
On stress and comfort:
“We spent the entire length of human history with one goal: stress reduction… And then we got to 2000 and realized, oh, fuck, maybe that was the wrong target.” – Dr. Galpin [13:04]
On the irreplaceable human touch:
“I want somebody there with me. I want a human taking me through X. That’s gonna feel better. ...It’s my biased opinion in my field that like, this is a great place where people want someone there.” – Dr. Galpin [19:17, 20:06]
This episode distills years of fitness research and practice into actionable wisdom for anyone wanting to shed fat while preserving muscle. Forget the one-size-fits-all approach—focus on a nutrition and exercise pattern you can stick with, keep protein and (ideally) some strength training in the mix, and pay attention to your own psychological needs. As science races toward ultra-personalized, tech-fueled health, Dr. Galpin warns against losing sight of human connection and the complex, irreplaceable fabric of our own biology and lives.
For the full conversation and additional context, listen to the complete episode linked in the show notes.