Transcript

Paper: Gearhardt AN, Brownell KD, Brandt AM. From Tobacco to Ultraprocessed Food: How Industry Engineering Fuels the Epidemic of Preventable Disease. Milbank Q. 2026;104(1):0202.https://doi.org/10.1111/1468-0009.70066

https://www.milbank.org/quarterly/articles/from-tobacco-to-ultraprocessed-food-how-industry-engineering-fuels-the-epidemic-of-preventable-disease/

Ashley, let's talk a little bit about, just set the stage for what this paper was all about, and since it was your brainchild, you approached Allan and me about being involved. Tell us what you set out to do and why you thought these issues were worth digging into.

Ashley - You know, I've just been so struck that when we think of cigarettes, they were something that's so common, so normal that we kind of think, oh, they've always just sort of been there. But truly, they're just taking a natural plant from the ground and through advancements and corporate engineering and technology and knowhow, they took a poisonous plant and made it into the most deadly and addictive drug in human history. And yet that was, you know, just accompanied by tons of debate. It didn't look like other addictive substances. And I just really felt like, man, we're reliving this history right now when it comes to how we've altered our food supply. I wanted to really bring you all together and see if we could really lay that story out of the, the parallels of these two public health crises.

We'll get in a minute into the issue of what you discovered, but tell us what you covered, what the paper was meant to do.

Ashley - The paper really goes back from how you take the tobacco plant in the field, or the corn in the field, and walks essentially through all the kind of levers that are being pulled to transform it in very specific ways. And through specific technologies and corporate practices that are being shared by modern cigarettes and ultra processed foods. These products maybe look harmless on their face initially, or don't look like they're just maybe pleasurable or craveable. But truly, I would argue that they've crossed thresholds into things that are addictive and clearly damaging many people's lives.

Okay, so several decades ago, I don't know who came up with a term, but there was a lot of discussion about similarities between tobacco industry behavior and food industry behavior. And the press started publishing cover pieces that would say food is the next tobacco. And it was a term that the food industry really didn't like, and they don't want that comparison at all. It'll be interesting to see whether they deserve it. You clearly made that connection in this paper.

Allan, let's turn to you. Oh my God. I mean, we could do a 15-hour podcast and not cover the history of the tobacco industry. There's so much to say, enough that you wrote a massive book about it. But give an overall sense, if you will, of the kind of tactics and morality of that industry.

Allan - Well, as Ashley already mentioned, early in the 20th Century we wouldn't really be thinking much of cigarettes, and they were just a very peripheral sales consumer item. And over the course of the 20th Century, we came to a point in the middle of the century of the 1970s, and '80s where about half of all American adults were smoking cigarettes regularly. I wanted to understand that. How do you take something that's at the very margin of the economy and culture and make it a dominant consumer force? And I think in that way, we have certain parallels to ultra processed foods. But then there were the questions, how do you make it so popular? Is it dangerous to use? Is it addictive? Does it cause disease? And how do you resist regulation and other public health approaches to try to keep people smoking? And I found a lot of evidence in each of those areas, both of how the industry acted. And when you say, you know, it's ultra processed food like cigarettes, we're learning a lot about ultra processed foods. But we know a ton about what the industry did to make the 20th Century what I call the Cigarette Century. And we have seen really important declines in smoking in the last 30-40 years. It's a remarkable public health effort. But at the same time, the industry worked incredibly hard and, in some ways brilliantly, to maintain the popularity of their product. And underlying all this is the idea that nicotine is highly addictive. And the industry came to understand that certainly before consumers did. And as a result, they could engineer, manage, manipulate the addictive character of a product that kills. I think looking for parallels, both in terms of how the industry did it and how perhaps public health law regulation can undo it, is the critical aspect of what we've been working on together.

Okay. So, the tobacco industry did more than just take a plant, dry it out, chop it up, and roll it up in some paper. Then people might be driving whatever natural pleasure there would be from that product. But they did more, didn't they?

Allan - Yes.

And you talked about nicotine in particular. So how manipulated was this industrial process and was it designed to create such high levels of addiction?

Allan - Well, for a long time we couldn't be sure about that. And we have learned that the industry had learned sophisticated techniques of industrial production of cigarettes. So, it wasn't like just chopping up tobacco and putting it in paper. You know, they added many additives. They added liquids. They dried it out, they put it in long strips of tobacco for cutting and packaging. And they had innovated the technologies, instead of human beings rolling cigarettes, they were able through machinery and technology to produce hundreds of thousands of cigarettes a day. And then they had to figure out how do we sell this tremendous volume of cigarettes in order to make our industry truly lucrative. So, there were those aspects. And certainly by the middle of the 20th Century, many people realize that - I smoke regularly and I crave my next cigarette and I'm smoking a pack a day, sometimes two packs a day. And people would ask, well, is it a habit? Is it habituating? Is it addictive? And as the science of addiction really grew in the middle of the 20th Century, we began to realize it had all the characteristics of addiction. But we really didn't know exactly what the companies were doing. And what we did learn in the '80s and '90s is that the companies had a precise ability to manage the nicotine in their product. And they did, so that even as they put filters on and they claimed they had safer cigarettes, they were also producing increasingly addictive cigarettes where we have craving, we have withdrawal, we have tolerance. The basic categories, that structure, how we understand addiction.

Okay. We'll dive into some of those in a little more detail, but thanks for that background. Ashley, people kind of get it that drugs can be addictive and they know that alcohol can be addictive. They know that cigarettes can. But what about food?

Ashley - Yes, so I think one of the things that when I take a step back, is that the reward and motivation system that alcoholic beverages, cigarettes can start to hijack and drive towards compulsive problematic use, that was laid down in the brain to make sure we were getting enough food. It's really sensitive to food reward, energy density. But the thing is you actually consume nicotine probably most days. Nicotine is actually in a lot of plants like tomato and eggplant, but nobody's getting addicted to the chemical in that delivery vehicle. I would argue the same thing's happening. When we look at our research nobody's getting addicted to minimally processed foods like bananas and broccoli, and salmon filets. It's when you're able to process and titrate and hedonically engineer food reward in a way that mimics the intensity and the sensory appeal and the spikes and crashes and the craveability of something like cigarettes, that you start to see people losing control. And when I read Allan's book, my husband was watching over my shoulder. And he's like, you know, if you highlight every single sentence, it's not gonna help you because you've highlighted the whole book. And reading what Allan laid out about how each wave of cigarette addiction, it wasn't because we suddenly discovered what nicotine was, it's because the industry got better at manipulating engineering, designing, flooding the market with it. And then health washing it, so people didn't really understand what they were getting into. And to me, that is what we've done to our food supply. And the result of that has been the astronomical increases in diet related disease and health concerns.

Tell us about the concept of ultra processed food and how that fits in.

Ashley - Yes. Yeah, that's a great question. So, ultra processed food is a concept that actually came out at about the same time as the Yale Food Addiction Scale, that Kelly and I published together, about how to operationalize who might be showing signs of addiction and certain foods. Carlos Monteiro from Brazil was noticing that his grocery store was starting to be flooded by foods that you could not make in your home kitchen. I have exactly no idea how to make a double stuffed Oreo or a flaming hot Cheeto, or a Cherry Coca-Cola. And as these products that were industrially created with additives and flavor enhancers that are kind of biologically novel, that's when the disease risk started to go up. And so, these foods are so fundamentally changed in they're kind of most archetypa...

E295: Food engineering is fueling preventable disease