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

24 min
Feb 27, 20263 months ago
Listen to Episode
Summary

Dr. Rupy Aujla discusses why ultra-processed foods drive overconsumption and presents four practical strategies for sustainable weight management: unprocessing your diet, increasing fiber, eating protein at breakfast, and having an earlier dinner. The episode emphasizes that effective health improvements come from behavioral changes and environmental design rather than willpower alone.

Insights
  • Ultra-processed foods trigger overconsumption through hyperpalatability and reward system hijacking, causing 500+ extra calories daily in controlled studies, independent of willpower or calorie awareness
  • Non-nutritional upstream interventions like improving sleep from 6 to 8 hours reduce daily calorie intake by 22% naturally without dietary restriction or conscious effort
  • One-ingredient foods and outer-supermarket shopping provide simple, memorable heuristics that work for most people without requiring complex nutritional knowledge or label reading
  • Environmental design (removing ultra-processed foods from home) is more effective than relying on self-control, especially for people resetting their diet or taste preferences
  • Incremental dietary improvements of 10-20% reduction in processed foods deliver measurable health benefits, making perfectionism counterproductive to long-term adherence
Trends
Growing recognition that calorie-deficit messaging alone fails in real-world settings; behavioral and environmental factors drive weight management outcomesShift from restriction-based dieting to addition-based strategies (adding fiber, protein, sleep) that naturally reduce calorie intake without conscious limitationIncreased focus on microbiome health and food matrix integrity as independent health factors beyond caloric content in ultra-processed food researchRising awareness of ultra-processed foods targeting vulnerable populations; 70% of UK/US diet now ultra-processed, creating public health intervention opportunitiesEmphasis on flavor and cultural food enjoyment as retention drivers for sustainable healthy eating, moving away from joyless health messagingIntegration of sleep, stress, and lifestyle factors into nutritional strategy frameworks rather than siloed dietary-only interventions
Companies
The Doctor's Kitchen
Dr. Rupy Aujla's company; platform making healthy cooking accessible and enjoyable for all audiences
People
Dr. Rupy Aujla
Medical doctor, nutritionist, and author discussing ultra-processed food mechanisms and sustainable weight management...
Dr. Rangan Chatterjee
Podcast host and health communicator discussing behavioral change and upstream health interventions with Dr. Aujla
Chris van Tulleken
Referenced expert on ultra-processed foods and observational evidence of long-term dietary health impacts
Quotes
"These practices 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"
Dr. Rupy Aujla
"If you sleep five hours a night compared to eight hours you eat on average 22 percent more calories the following day"
Dr. Rangan Chatterjee
"The participants who were on the ultra processed diet arm consumed on average 500 calories a day more than on the minimally processed diet"
Dr. Rupy Aujla
"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"
Dr. Rupy Aujla
"You're not trying to consume less you're just choosing different foods and you're naturally consuming less"
Dr. Rangan Chatterjee
Full Transcript
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 thewayapp.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 Orjula. 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 overconsumption, and we discuss the power of single-ingredient foods to transform our health. So if someone's listening, Rupi, and they're like, what on earth should I do then? And you shared some of the science with me in terms of what it says about how one technically loses weight. But you mentioned that term real world. 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? 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 percent more calories the following day totally right so let's just really think about that for 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 patients in the past 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 you 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 just talked about calories and 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 definitely something that I 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, unprocess your 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. i 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 i because i kind of 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. 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 diets. 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 the 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 hyperpalatable, 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 to 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 micro 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, in 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, 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 emulsifiers, 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. so 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 you're like, okay, yeah, I mean, the energy balance theory does work. Absolutely. But 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 controlled 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 valentillican on on the podcast about the subject you know 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 foods and the mechanisms and all that kind of stuff but give people simple strategies and simple ways in which they can deprest your diet i think one of the most like that 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 that's going back some time now almost 10 years i remember doing that and yeah yeah i mean you say it's controversial right um and i agree it is one of the most useful strategies i've 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 uh there was a small section who 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 stressed 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 ah i'm not sure i feel like that at the moment it's not really what i wanted yeah i said don't eat yeah because it wasn't what i wanted i wanted that little hit from something sweet yeah 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 to doctor in the house, I think a lot of these principles depend, they depend where you're at on your journey, right? If you're used to having loads of ultra processed foods and that's, you know, making up 70% of your 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 it can help you reset your taste buds yeah and i know you know all the studies on and maybe we can talk about them about how we we tend to over consume ultra processed foods most people listening 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 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 to and 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 uh 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 ablibidum. 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, ablibidum, 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 2000 calories, you're going to be consuming another 500 calories, an extra 25% more energy. What do you think that's going to do to fat, visceral fat? And that just after two weeks What that going to do over time So this idea that we can exercise self in an environment where we have food, that clearly is something that we over-consume when given in a free living environment. It's something that I think needs to be addressed by having some guides, some sort of rails around so we don't use up the willpower when we're in kitchen when we're at our home because outside we don't have a 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, brilliant. 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 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. So if you can, and we recognize it can be tricky and there are cost implications, 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 gonna 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 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 uh the marinade for something that you make yourself at home these little things even reducing the amount of ultra processed 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 uh foods as much as possible shop in the outer uh outskirts of your supermarkets and be realistic about what something 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 there's ideal and optimal and then there's realistic right yeah you may not be able to get to 100 percent yeah uh 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 percent you're still gonna get those benefits you're gonna 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 chili all love it uh gochujang 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 one ingredient food that much more delicious and palatable and i think there is 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 and even weight loss flavor is really really at the at the forefront of what i'm passionate about and i think it's really important to to maintain sort of this perspective on like food being 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 and i think it's so much yeah and i think that's one of the things people really love about your approach rupi so 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 Conversational Wednesday and the latest episode of Bite Science next Friday.