Feel Better, Live More with Dr Rangan Chatterjee - BITESIZE | Why You Can’t Stop Eating Ultra-Processed Foods (And What To Do Instead) | Dr Rupy Aujla #630

Episode Date: February 27, 2026

Why has nutrition – something that should be so simple – become so complicated? With 70% of our diet now consisting of ultra-processed foods and conflicting advice everywhere we look, is it any wonder we’re confused about what to eat? Feel Better Live More Bitesize is my weekly podcast for your mind, body, and heart. Each week I’ll be featuring inspirational stories and practical tips from some of my former guests. Today’s clip is from episode 520 of the podcast with medical doctor and nutritionist, my good friend Dr Rupy Aujla. In this clip, Rupy explains why ultra-processed foods often lead to overconsumption, and we discuss the power of single-ingredient foods to transform our health. Thanks to our sponsor ⁠⁠⁠https://thewayapp.com/livemore  Show notes and the full podcast are available at https://drchatterjee.com/520 Support the podcast and enjoy Ad-Free episodes. Try FREE for 7 days on Apple Podcasts ⁠⁠https://apple.co/feelbetterlivemore⁠⁠ For other podcast platforms go to ⁠⁠https://fblm.supercast.com. DISCLAIMER: The content in the podcast and on this webpage is not intended to constitute or be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your doctor or other qualified health care provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have heard on the podcast or on my website.

Today's bite-size episode is sponsored by The Way. I have tried so many meditation apps over the years, but I've never come across one as good or as effective as The Way. I find it a fantastic way to start off each day, and it has really helped me feel calmer, relaxed and more present. In fact, I love this app so much that I recently decided to invest in the company and join them in their mission to get more people meditating. meditation has been shown to have all kinds of benefits, reducing stress, increasing calm,

improving focus, and over time has even been shown to result in positive structural changes in the brain in areas linked to memory, focus and emotional regulation. But of course, you only get those benefits if you actually do it. And that's one of the main reasons I love the way so much. It makes it really easy to establish a... meditation practice that sticks. The Way are offering my podcast listeners an incredible 30 free meditation sessions to get you started with your practice. To take advantage, all you have to do is go to the way app.com forward slash live more. Welcome to feel better live more bite size your weekly

dose of positivity and optimism to get you ready for the weekend. Today's clip is from episode 520 of the podcast with medical doctor and nutritionist, my good friend, Dr. Rupi Ordula. Rupi is an author and the founder of the doctor's kitchen, and someone who's on a mission to make healthy cooking accessible and enjoyable for all. In this clip, we discuss sustainable weight management, why ultra-processed foods often lead to over-consumption, and we discuss the power of single ingredient foods to transform our health. So if someone's listening, Rupin, they're like,

what on earth should I do then? You've shared some of the science with me in terms of what it says about how one technically loses weight, but you mention that term real worlds. That's the key thing, isn't it? There's what the science shows, there's what we can control in people in a laboratory setting, but what actually happens in real life?

Yeah. Busy people with busy lives faced with constant temptation. What do you suggest they do? So I think there are strategies that as a side effect, like you suggested earlier, will put you into a mild calorie deficit. But importantly, ensuring that you don't have to think about it and you're also creating something that is sustainable

that you can maintain consistency around. So instead of you like pushing yourself to maintain calorie deficits, which I think are just inherently very, very hard, these practices, I think, will make it super simple such that you don't really have to think about, okay, I need to restrict myself by not eating that. And possibly more enjoyable. 100%.

Before we get to those food practices that you recommend, I just want to really emphasize this point that we're talking about, which is what can be really helpful for many people is this idea that we focus on well-being in a variety of different ways and the side effect is that we consume less calories. And you're going to talk us through it from a food perspective. Let me just bring something in to really help

people think about that point from another perspective, sleep. We know from certain studies that if you sleep five hours a night compared to eight hours, you eat on average 22% more calories the following day. Totally. Right? So let's just really think about that for a moment, about this concept that we're talking about. You're saying that technically, you need to eat less calories per day than your body is burning if you want to lose weight. But what we're trying to say is that there are many ways to get to that end point without actually trying. So I have had patience in the past three people where I've helped them lose weight actually not by focusing on food, by getting them sleeping eight hours a night. Because when you sleep for eight hours a night, or let's say you can't manage that. improve your sleep, right? You're less hungry the next day. You feel fuller, earlier, and your ability to resist temptation is much higher when you've slept well. Right. So it's something

that I don't think people think about enough. Like, just because the food is important, there are other upstream levers that you can turn, which means that naturally you will make better food choices. Like when you're less stressed, you make better food choices and all those sort of things. And so, yeah, I just wanted to sort of double-click on that point, because I think it's really important for people to understand. I completely agree. And I think we need more longer-term strategies for weight, rather than quick fixes, which are being offered to us in the form of medications and diets and all the rest of it. But as part of that long-term strategy are non-nutritional strategies. It's not just about the food. I know we've just talked about calories and in and out and

this is the scientific way to lose weight. And yes, that's absolutely true. But what you're a big fan of and so am I are the other upstream effects that actually lead to behavior change in the real world. Yeah, absolutely. So let's get into food. Should we get into these four strategies?

Yeah. So I think the four things that people should really anchor any nutritional strategy around are unprocessing your diet, and we can talk about these in a lot more detail, adding more fiber to our diet. Eating protein, particularly at breakfast. I think protein is a bit of a controversial area,

but it's definitely something that I've changed my mind on. And eating an earlier dinner. I think these are the four very, very simple strategies that people could align their 24 hours of eating around that can certainly help with improving their gut health, improving their metabolic health and staving off weight gain. Yeah. I love those four, I'd call them principles. I think we share very similar philosophies on health

because we understand that different things work for different people. There's a lot of validity to the science on lots of different diets, but let's try and bring it together. Instead of making it complicated, let's try and simplify it. I think those four principles unprocessed, diet, increase your fiber intake, protein at breakfast and having an early dinner are really interesting. I definitely want to delve into them in a very practical way so that people can actually take something and start applying. So I think if there's one thing that you can do,

it is to unprocess your diet, what does that mean? Okay, I think the way you've described it in one of your books on weight loss, really packs so much information into a very simple strategy, which is focus your diet on one ingredient foods. And where do you find these one ingredient foods? Well, you find it on the outside of the aisles. You find it in the supermarkets with ingredients that you recognize

without the need for labels. It's a very easy thing for people to remember. It's a heuristic, a rule of thumb. I know there's going to be some nutrition scientists shouting that down at the podcast. I understand there is an over classification. I understand that it's not as simple as saying if you don't recognize the ingredients on the back of a packet,

then just put it back on the shelf. I think this is actually a good strategy for most people because it's understandable. Yeah, it's like, what is the goal? If the goal is to help people, we need to communicate these ideas in a way that actually resonates with them that they can apply. Although I understand it doesn't fit in every situation,

I still believe that actually that concept of if it's got more than five ingredients on it, just think twice before you put it in your mouth. I still stand by that. Yeah. Right? Because can I say it works 100% of the time? No, I can't say that. But is it a useful framework to think about as you're going through life?

I found it very helpful. And I know many of my patients in the past have found it helpful as well. So I'm still going to go, I think it's helpful for most people. I agree. Let's connect this, this first principle, unprocess your diet. Let's connect that to this concept of calorie deficits, right? So again, the principle being that we're trying to engage in practices that are fun, that are enjoyable, that naturally lead to us consuming less calories, without focusing on the calories, right? So, you know, how does unprocessing your diet fit in, with us consuming less calories? So the mechanisms that exist that explain why ultra-processed foods

are damaging for our health are multifactorial. One of the key things I think, and probably the simplistic explanation, the Occam's Razor approach, if you like, is that it actually leads to over-consumption of these foods. Because they're so hyper-palatable, because they light up the reward systems within our brain, we generally over-consume calories. And this is a bit of a conundrum for folks like us, right? Because on the one hand, we understand the reasons and the biological reasons as to why this leads to ill effects like weight gain. But on the other hand, it kind of gives food companies a bit of a way out. It gives food companies a narrative that says, well, as long as you don't consume these foods, as long as you maintain willpower not to consume as much of these chips

and cookies and whatever, then these are perfectly safe for you. They are safe within the context of someone's motivation. And I think that's incorrect because what's happening is a hijacking of our senses that leads to the overconsumption in the first place. And so you could also argue that ultra-processed foods displace healthy foods from our diet. The matrix degradation of the food leads to a lack of ingredients for our microbiome. And we know, and you've spoken during your podcast many times, that anything that supports our microbes' health is super important from the perspective of inflammation, sugar balance, but also weight maintenance as well.

And unfortunately, the marketing of these foods tend to be at those of the most vulnerable in society. And this sort of availability and convenience of ultra-processed foods leads to what we see in the studies being the reason as to why it makes up so much of a population's diet, particularly in the West and the US and UK, and it's growing in other countries as well. And I think if you look at the stats

around the number of processed foods that we have in our grocery stores, you know, it's around 70%. I mean 70% of the UK and US's diet is processed, ultra-processed. foods. So these are foods that are really far removed from the original intended ingredient. They've had added salts, added amosifiers, other additives to ensure its sweetness. What's an emulsifier? An emulsifier is something that changes the texture of food to make it a lot more palatable. There are other additives that are used to ensure that the shelf life is preserved. And there are other things that we also do to food to preserve shelf life.

like dehydration. So all these things collectively have been shown in a number of different studies to be linked with poor health, independent of the calories that they consume. And independent of weight loss. Exactly, independent of weight loss as well. Which is why, going back to what we said before,

even if you could technically lose weight by eating junk food. Because I guess you could say, I could literally have soft drinks and French fries, but as long as it's in a calorie deficit, I will still technically lose weight. You may not be improving your health at the same time. Or you may, you know, on one hand be helping a little bit,

but on the other hand, be causing a whole host of other issues for you. Yeah, and there are stories that have done that as well. I mean, they're pretty impressive. And you look at it and we're like, okay, yeah, I mean, the energy balance theory does work, absolutely. But, you know, what are the long-term ramifications? You can't do a study for more than a couple of years at most. Like, what are the implications of this kind of habitual eating

over decades and the only evidence that we have around that are observational essentially. No one's going to put someone on a randomized control trial between ultra-processed and less-processed foods. We look at natural experiments. And so this is the strongest evidence that we have. I know you've spoken to Chris Valentilicon on the podcast about the subject. Everything he says is true. And I think it's on us as health communicators to not only give people the information around

ultra-processed food, the mechanisms and all that kind of stuff, but give people simple strategies and simple ways in which they can deprecise you die. I think one of the most, like, I mean, there's so many things about Doctor in the House that are like buried into my brain, but one of the best things,

and I think it's controversial to a lot of people today, but when you went into a family's house and you opened up the cupboards and you were like, take all of this out. And it was cereals, it was marinades, it was sauces, all these different elements. I'm out going back some time now, almost 10 years.

I remember doing that. Yeah. Yeah, I mean, you say it's controversial, right? And I agree it is. One of the most useful strategies I found with patients over the years, and frankly myself, is this idea to not use up willpower in your house. One of the last times I posted about this idea on Instagram,

there was a small section who, well, like, this is ridiculous. We should be able to have unhealthy, let's say, ultra-processed foods in our house, and we should be in tune enough with our bodies to not consume it. Now, I don't disagree that that would be a great aspirational state to be in. I just don't think many of us are in that state, and I feel that a lot of the time we're making our life really difficult if we're using it willpower in the house.

So I genuinely do not bring food into my house that I don't want to be consuming. I don't tend to keep sweets, chocolates, cakes. I don't keep them at home because there will be an evening when I'm feeling tired and a bit of stress and I will start opening the cupboards and look for something a little bit sweet and all I can see at the moment are whole nuts and olives. And sometimes I'm like, I'm not sure I feel like that at the moment.

It's not really what I wanted. I thought, don't eat. Because it wasn't what I wanted. I wanted that little hit from something sweet. So again, in terms of what is practical for many people, and my bias is the patients I've seen over the years, I think not using your willpower in your house is a great tool. And also, thinking back now to that family who I helped a doctor in the house,

I think a lot of these principles depend, they depend where you're out on your journey. If you're used to having loads of ultra-processed foods, and that's, you know, making up 70% if you'll diet, as it is for many people, actually to reset, maybe for a few months you don't want that stuff anywhere near you. So it can help you reset your taste buds. And I know you know all the studies on,

and maybe we can talk about them about how we tend to over-consume ultra-processed foods. Most people listen will know the advert, you know, Pringles, once you pop, you can't stop. Well, I think most of us know that feeling. Once that packet opens, doesn't take long before it's empty. Yeah.

And I think to your point about the folks who are saying, you know, it's lunacy to take all the ultra-processed foods out of your kitchen and that we should have willpower and the self-control, I think that's honestly antithetical to the science. And just one study, I mean, there's so many different studies, but there was one study that was performed in a metabolic ward, so that's where you have a very accurate,

idea of calories in calories out. It was done in 2019. They looked at just 20 adults and they consumed ablybidum. So whatever they wanted, they were able to consume of two weeks of a minimally processed diet. And then it was crossed over with another two weeks. Again, ablybidim, so whatever they want, of an ultra-processed diet. And the participants who were on the ultra-processed diet arm when they were on the ultra-processed arm, they consumed on average 500 calories a day more than on the minimally processed diet. So let's put that into context.

Going back to the lady at the start, the sort of example of 2,000 calories, you're going to be consuming another 500 calories. It's an extra 25% more energy. What do you think that's going to do to fat, visceral fat? And that's just after two weeks. What's that going to do over times? So this idea that we can be,

that we can exercise self-control in an environment where we have food that clearly is something that we over-consume when given in a free-living environment is something that I think needs to be addressed by having some guides, some sort of rails around, so we don't use up the wheelpower

when we're in our kitchen, when we're at our home, because outside we don't have control of that. Yeah. In our houses, we do. Let's just think about it through this wider point, which is to improve our health, to reduce the harmful levels of fats

that are on many of our bodies, right? Even if we're just a little bit overweight, but have that dangerous visceral fat, the fats around our organs, the pro-inflammatory fat that's increasing our risk of chronic disease, the point we're trying to land in this conversation, I think is this idea that we want to help people generally eat less.

But we want to help them do that by not necessarily focusing on eating less. We recognize that some people actually probably do okay by focusing on eating less. And you mentioned some people in certain industries, very motivated. They like to track calories. They like to measure how much they're having. Okay, great. I don't think either one of us are saying for that individual to stop. We're saying, if that's working for you,

We want the same outcome. We want people's health to improve, right? If that's your way of doing it, wonderful. But so far, there's two specific things that I think people can grab their heads around. Right? What you just said about ultra-processed foods, if you are eating ultra-processed foods regularly,

you're probably going to be consuming more naturally. Yeah. So if you can, and we recognize it can be tricky, and there are cost-simplications, But if you can go to more whole, unprocessed foods, these one ingredient foods, as much as you can, it's likely that you're naturally going to consume less. Right? So you're not trying to consume less. You're just choosing different foods and you're naturally consuming less. And we also mentioned with sleep. If you can improve your sleep a little bit, let's say you're sleeping six hours a night. You can even get that to six and a half hours a night to make it,

instead of black or white, perfect or nothing, it's like, no, no. even 30 minutes extra, it's going to have an impact on your hunger, your satiety. You're going to naturally be consuming less the next day. And you're going to naturally be able to resist temptation a little bit more. These are two kind of relatively simple levers to turn, simpler for some than others, of course, that will naturally lead to you consuming less calories. Yes, exactly that, exactly that. And I think it's a nice framework that you've done.

like throughout this part of getting people to understand that you're going to naturally consume less energy. We can explain it through the energy balance model, absolutely. But I think it's important for people to actually think about the tangible activities that they can do every single day. And it can be explained by the science, but just get people to do these practices of, you know, swapping your crisps for nuts or swapping the marinade for something that you make yourself

at home. These little things, even reducing the amount of ultra-process foods in your diet, is still better than completely eradicating it as well. It comes down to, you know, what our ancestors would have eaten, what our grandmothers would have told us, you know, this is why I'm a big fan of simple messaging of like one ingredient foods as much as possible,

shopping the outskirts of your supermarkets, and be realistic about whether something is processed or not. If it comes from a packet, just think twice, like you said, read the back of the ingredient label. And also be realistic. You know, there's ideal and optimal, and then there's realistic, right? Yeah.

You may not be able to get to 100% of minimally processed foods. I mean, sure, that would be amazing. But I think for many people, they feel that's a little unrealistic, but they perhaps don't need to. Yeah, totally. You can still get, even if you reduce it and change the balance by 10 or 20%, you're still going to get those benefits. Absolutely.

You're going to start to get those benefits. Yeah, it's very easy to be puritanical about this stuff. And I'm certainly not a fan of being puritanical of this to the point where I make a point on social media of highlighting processed foods that I love. You know, Chiluil, love it. Gotuchang, love it. There's a Korean fermented paste that gives beautiful depth of flavor and color and heat to whatever it might be.

It could be something that I add to beans. It might be something that I add to cauliflower to make a wonderful. ingredient food that much more delicious and palatable. And I think there are ways in which we can use some processed ingredients into our diet and still have very holistically a healthful diet that will ultimately, you know, lead to better weight maintenance and even weight loss. Flavor is really, really at the forefront of what I'm passionate about. And I think it's really important to maintain sort of this perspective on like food being life. Food is life. Everything is geared around like in the enjoyment of food. It's like it's the real sort of bond that people share.

It's how we celebrate other people's cultures. It is so much to me. I think it's so much to Yeah. And I think that's one of things people really love about your approach, Rupies. You're trying to bring back the fun and the joy. Yeah. Hope you enjoyed that bite size clip. I hope you have a wonderful weekend. And I'll be back next week with my long form conversation on Wednesday and the latest episode of Bight Science next Friday.