Kevin Hall
@kevinh-phd.bsky.social
Nutrition & Metabolism scientist. KevinHallPhd.com
The NOVA food classification system defines processed vs ultra-processed foods as summarized in this slide:
November 11, 2025 at 1:40 PM
The NOVA food classification system defines processed vs ultra-processed foods as summarized in this slide:
I really enjoyed participating in the Stockholm Food Forum to discuss UPFs, nutrition science, the future of food, and the opportunities & challenges ahead. It was great to meet so many people from around the world who are passionate about these issues!
October 7, 2025 at 11:45 AM
I really enjoyed participating in the Stockholm Food Forum to discuss UPFs, nutrition science, the future of food, and the opportunities & challenges ahead. It was great to meet so many people from around the world who are passionate about these issues!
First review of Food Intelligence on Amazon!
September 30, 2025 at 1:59 PM
First review of Food Intelligence on Amazon!
It’s exciting to finally see that my book with @juliabelluz.bsky.social is an actual physical object!
September 7, 2025 at 11:23 PM
It’s exciting to finally see that my book with @juliabelluz.bsky.social is an actual physical object!
After years of work with @juliabelluz.bsky.social, it's hard to believe that our book FOOD INTELLIGENCE will be published this month! @barnesandnoble.com has 25% off pre-orders placed on Sept 3-5.
www.barnesandnoble.com/w/food-intel...
www.barnesandnoble.com/w/food-intel...
September 1, 2025 at 3:23 PM
After years of work with @juliabelluz.bsky.social, it's hard to believe that our book FOOD INTELLIGENCE will be published this month! @barnesandnoble.com has 25% off pre-orders placed on Sept 3-5.
www.barnesandnoble.com/w/food-intel...
www.barnesandnoble.com/w/food-intel...
Yesterday, my colleagues gave me this wonderful gift memorializing my career at NIH and my professional relationships that I will always cherish. I am honored to have had the privilege of working with these dedicated public servants!
August 29, 2025 at 7:31 PM
Yesterday, my colleagues gave me this wonderful gift memorializing my career at NIH and my professional relationships that I will always cherish. I am honored to have had the privilege of working with these dedicated public servants!
For the rest of July, folks in the UK get 25% off when they preorder Food Intelligence (my book with @juliabelluz.bsky.social) at @waterstones.bsky.social.
July 28, 2025 at 2:21 PM
For the rest of July, folks in the UK get 25% off when they preorder Food Intelligence (my book with @juliabelluz.bsky.social) at @waterstones.bsky.social.
Recently seen on NIH’s main campus:
July 27, 2025 at 3:27 PM
Recently seen on NIH’s main campus:
#FoodIntelligence combines my scientific expertise with Julia’s incisive journalism to help you better understand nutrition science, how our food environment drives metabolic disease, & what to do about it. This book has been years in the making & it’s finally a reality! @avery-books.bsky.social
July 16, 2025 at 9:53 AM
#FoodIntelligence combines my scientific expertise with Julia’s incisive journalism to help you better understand nutrition science, how our food environment drives metabolic disease, & what to do about it. This book has been years in the making & it’s finally a reality! @avery-books.bsky.social
I hope the assumption of @jeremymberg.bsky.social is valid, but the wording of the last bullet when the NIH announced this policy seems quite broad. The worry is that NIH might refuse to fund basic biological research in animal models unless projects the also include NAMs (new approach methodology).
July 8, 2025 at 6:53 PM
I hope the assumption of @jeremymberg.bsky.social is valid, but the wording of the last bullet when the NIH announced this policy seems quite broad. The worry is that NIH might refuse to fund basic biological research in animal models unless projects the also include NAMs (new approach methodology).
After 21 years at my dream job, I’m very sad to announce my early retirement from the National Institutes of Health. My life’s work has been to scientifically study how our food environment affects what we eat, and how what we eat affects our physiology.
April 16, 2025 at 9:00 PM
After 21 years at my dream job, I’m very sad to announce my early retirement from the National Institutes of Health. My life’s work has been to scientifically study how our food environment affects what we eat, and how what we eat affects our physiology.
For >20 years obesity was thought to be associated with reduced dopamine receptors in brain reward regions. Now, a big study by @vdarcey.bsky.social shows that this may be have been an artifact (top figure panel) due to brain dopamine tone being positively associated with body fat (bottom).
April 6, 2025 at 2:14 PM
For >20 years obesity was thought to be associated with reduced dopamine receptors in brain reward regions. Now, a big study by @vdarcey.bsky.social shows that this may be have been an artifact (top figure panel) due to brain dopamine tone being positively associated with body fat (bottom).
Starting soon! The first NIH FDA workshop on Nutrition Regulatory Science. I’ll be presenting about the path forward for ultra-processed food research around 1 pm ET. www.scgcorp.com/jointnih-fda...
December 17, 2024 at 2:40 PM
Starting soon! The first NIH FDA workshop on Nutrition Regulatory Science. I’ll be presenting about the path forward for ultra-processed food research around 1 pm ET. www.scgcorp.com/jointnih-fda...
Today, Dr. Califf testified to the US Senate that our UPF research is "tremendous" and "important"! I'll discuss our studies and how to accelerate the science of elucidating UPF mechanisms driving chronic disease at a joint NIH FDA meeting on Dec 17 #MAHA www.scgcorp.com/jointnih-fda...
December 5, 2024 at 6:16 PM
Today, Dr. Califf testified to the US Senate that our UPF research is "tremendous" and "important"! I'll discuss our studies and how to accelerate the science of elucidating UPF mechanisms driving chronic disease at a joint NIH FDA meeting on Dec 17 #MAHA www.scgcorp.com/jointnih-fda...
Ultra-processed foods are increasingly recognized by consumers as contributing to poor health. What should the food industry do? Make healthier foods? Nah, according to this article the answer is more advertising! 🤦♂️
November 27, 2024 at 7:28 PM
Ultra-processed foods are increasingly recognized by consumers as contributing to poor health. What should the food industry do? Make healthier foods? Nah, according to this article the answer is more advertising! 🤦♂️
BUT, surprisingly only the minimally processed food environment led to body fat loss as measured by DEXA.
November 27, 2024 at 10:47 AM
BUT, surprisingly only the minimally processed food environment led to body fat loss as measured by DEXA.
Body weight changes seemed to correspond to energy intake differences between the food environments. Importantly, despite an environment of ~80% of calories from UPF, low energy density & hyper-palatability UPFLL didn’t lead to weight gain but rather similar weight loss to MPFll.
November 27, 2024 at 10:46 AM
Body weight changes seemed to correspond to energy intake differences between the food environments. Importantly, despite an environment of ~80% of calories from UPF, low energy density & hyper-palatability UPFLL didn’t lead to weight gain but rather similar weight loss to MPFll.
The primary outcome was ad libitum energy intake. The UPFhh food environment led to 1000 kcal/d greater intake than the MPFll environment. But the UPFll environment substantially mitigated this effect suggesting that energy density & hyper-palatable foods are important mechanisms
November 27, 2024 at 10:45 AM
The primary outcome was ad libitum energy intake. The UPFhh food environment led to 1000 kcal/d greater intake than the MPFll environment. But the UPFll environment substantially mitigated this effect suggesting that energy density & hyper-palatable foods are important mechanisms
Participants reported no significant differences in meal pleasantness and there were no significant differences in speed of eating.
November 27, 2024 at 10:45 AM
Participants reported no significant differences in meal pleasantness and there were no significant differences in speed of eating.
Participants were blinded to the primary outcome and were asked not try to gain or lose weight. They followed instructions and reported no significant differences in appetite in the four food environments.
November 27, 2024 at 10:44 AM
Participants were blinded to the primary outcome and were asked not try to gain or lose weight. They followed instructions and reported no significant differences in appetite in the four food environments.
Study participants were admitted to the NIH Clinical Center or a month where we exposed them to 4 different food environments with 6000 kcal/d as described below and instructions to eat as much or as little as they wanted.
November 27, 2024 at 10:43 AM
Study participants were admitted to the NIH Clinical Center or a month where we exposed them to 4 different food environments with 6000 kcal/d as described below and instructions to eat as much or as little as they wanted.
I’m quoted in this recent @TIME article on ultra-processed foods and I’m also amused by the change in headline! time.com/7007857/ultr...
August 31, 2024 at 1:20 PM
I’m quoted in this recent @TIME article on ultra-processed foods and I’m also amused by the change in headline! time.com/7007857/ultr...