Dr. Chris van Tulleken

So instead, we fed people a diet of ultra processed food that is in line with our national dietary guidance versus a minimally processed diet of the same thing. So we're trying to investigate the claim that if we make the ultra processed food as healthy as we can, does it still cause negative health outcomes? And especially, does it do that in comparison to a minimally processed diet?

So instead, we fed people a diet of ultra processed food that is in line with our national dietary guidance versus a minimally processed diet of the same thing. So we're trying to investigate the claim that if we make the ultra processed food as healthy as we can, does it still cause negative health outcomes? And especially, does it do that in comparison to a minimally processed diet?

It's asking the same question in a different and hopefully more ethical way.

It's asking the same question in a different and hopefully more ethical way.

It's asking the same question in a different and hopefully more ethical way.

you'd have the same problem. I think that there are two questions. First of all, and this has been very kind of hotly contested between people funded by the food industry and more independent scientists, is the definition of ultra processed food useful or is it just describing food that we already think is unhealthy? And there are a number of ways to answer that question.

you'd have the same problem. I think that there are two questions. First of all, and this has been very kind of hotly contested between people funded by the food industry and more independent scientists, is the definition of ultra processed food useful or is it just describing food that we already think is unhealthy? And there are a number of ways to answer that question.

you'd have the same problem. I think that there are two questions. First of all, and this has been very kind of hotly contested between people funded by the food industry and more independent scientists, is the definition of ultra processed food useful or is it just describing food that we already think is unhealthy? And there are a number of ways to answer that question.

I think the way we currently define unhealthy food isn't working in policy terms. So whatever definition you're using, in the US you have very weak definitions of unhealthy food. It's not entirely easy to say how you define unhealthy food in the United States. You have dietary guidance, which is fairly good, and bits of it are aligned with international guidance.

I think the way we currently define unhealthy food isn't working in policy terms. So whatever definition you're using, in the US you have very weak definitions of unhealthy food. It's not entirely easy to say how you define unhealthy food in the United States. You have dietary guidance, which is fairly good, and bits of it are aligned with international guidance.

I think the way we currently define unhealthy food isn't working in policy terms. So whatever definition you're using, in the US you have very weak definitions of unhealthy food. It's not entirely easy to say how you define unhealthy food in the United States. You have dietary guidance, which is fairly good, and bits of it are aligned with international guidance.

But there's nothing I can see where you go, these are a set of thresholds and criteria by which we will declare a product to be unhealthy. So for a start, when we say, is the definition useful? You have to say, well, is it useful in comparison to what? There's no question it's been incredibly powerful as a research tool. And that's what it was designed for. So the definition is set in stone.

But there's nothing I can see where you go, these are a set of thresholds and criteria by which we will declare a product to be unhealthy. So for a start, when we say, is the definition useful? You have to say, well, is it useful in comparison to what? There's no question it's been incredibly powerful as a research tool. And that's what it was designed for. So the definition is set in stone.

But there's nothing I can see where you go, these are a set of thresholds and criteria by which we will declare a product to be unhealthy. So for a start, when we say, is the definition useful? You have to say, well, is it useful in comparison to what? There's no question it's been incredibly powerful as a research tool. And that's what it was designed for. So the definition is set in stone.

It went through a revision, but it's been in stone since 2018.

It went through a revision, but it's been in stone since 2018.

It went through a revision, but it's been in stone since 2018.

France, Israel, Belgium, most South and Central American countries, Canada, give advice using the NOVA classification. And it's a nine-paragraph definition. But the definition, and it broadly describes modern, pre-packaged, pre-prepared American industrial food. And I'm sorry, I know this is an American audience here.

France, Israel, Belgium, most South and Central American countries, Canada, give advice using the NOVA classification. And it's a nine-paragraph definition. But the definition, and it broadly describes modern, pre-packaged, pre-prepared American industrial food. And I'm sorry, I know this is an American audience here.

France, Israel, Belgium, most South and Central American countries, Canada, give advice using the NOVA classification. And it's a nine-paragraph definition. But the definition, and it broadly describes modern, pre-packaged, pre-prepared American industrial food. And I'm sorry, I know this is an American audience here.