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We’ve apparently found the culprit for the obesity epidemic, and it’s “ultra-processed foods”. They’re the plastic-wrapped, industrially-produced foods with long lists of ingredients that apparently make up 60% of the average UK diet.
In this episode of The Studies Show, Tom and Stuart tuck in to some “hyper-palatable” research on nutrition and health, discuss the main randomised trial in this area, and try (and immediately fail) to read out the whole definition of “ultra-processed foods” in one breath.
The Studies Show is brought to you by the i, the UK’s best daily newspaper. You can find the latest deals for subscriptions—including a 50% off deal for digital subscriptions—at this link. Thanks to the i for their support!
If you’re enjoying The Studies Show, then please consider becoming a subscriber. You can join as a free subscriber and get an email whenever we release an episode. If you join as a paid subscriber, you’ll be able to access some features like ask-me-anything chats with Tom and Stuart, and (soon) paid-only episodes. Either way, you can subscribe by typing your email address below:
Show Notes
* Chris van Tulleken’s Guardian article with a summary of the case against UPFs
* The UN document giving all the details on the NOVA classification
* Study rating people’s agreement on which foods are in which NOVA category
* Stuart’s article on UPFs
* Systematic review & meta-analysis on the UPF correlation with premature death
* The NIH randomised controlled trial of UPFs versus unprocessed foods
* Photos of the meals given in the experiment, from the study’s Appendix
* Interesting Twitter discussion with the RCT’s lead author
* Page with details on Stephan Guyenet’s book, The Hungry Brain
Credits
The Studies Show is produced by Julian Mayers at Yada Yada Productions.
By Tom Chivers and Stuart Ritchie4.6
6060 ratings
We’ve apparently found the culprit for the obesity epidemic, and it’s “ultra-processed foods”. They’re the plastic-wrapped, industrially-produced foods with long lists of ingredients that apparently make up 60% of the average UK diet.
In this episode of The Studies Show, Tom and Stuart tuck in to some “hyper-palatable” research on nutrition and health, discuss the main randomised trial in this area, and try (and immediately fail) to read out the whole definition of “ultra-processed foods” in one breath.
The Studies Show is brought to you by the i, the UK’s best daily newspaper. You can find the latest deals for subscriptions—including a 50% off deal for digital subscriptions—at this link. Thanks to the i for their support!
If you’re enjoying The Studies Show, then please consider becoming a subscriber. You can join as a free subscriber and get an email whenever we release an episode. If you join as a paid subscriber, you’ll be able to access some features like ask-me-anything chats with Tom and Stuart, and (soon) paid-only episodes. Either way, you can subscribe by typing your email address below:
Show Notes
* Chris van Tulleken’s Guardian article with a summary of the case against UPFs
* The UN document giving all the details on the NOVA classification
* Study rating people’s agreement on which foods are in which NOVA category
* Stuart’s article on UPFs
* Systematic review & meta-analysis on the UPF correlation with premature death
* The NIH randomised controlled trial of UPFs versus unprocessed foods
* Photos of the meals given in the experiment, from the study’s Appendix
* Interesting Twitter discussion with the RCT’s lead author
* Page with details on Stephan Guyenet’s book, The Hungry Brain
Credits
The Studies Show is produced by Julian Mayers at Yada Yada Productions.

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