Ultra-processed Food & Additives Archives

E285: Gut instincts, food, and decision making

October 23, 2025

The gut is in the news. It’s really in the news. Catapulted there from exciting developments coming from laboratories all around the world. Links of gut health with overall health are now quite clear and surprising connections are being discovered between gut health and things like dementia and Alzheimer’s. But how does the gut communicate with other parts of the body in ways that make it this important, and where does the brain figure into all this? Well, there’s some interesting science going on in this topic, and a leading person in this area is Dr. Diego Bohorquez. Dr. Bohorquez is the associate professor of medicine, of molecular genetics and microbiology and of cell biology at the Duke University School of Medicine.

Related podcasts: Diet & Nutrition | Microbiome | Ultra-processed Food & Additives | Zero Calorie Sweeteners |

E284: The Science of How Food Both Nourishes and Harms Us

October 16, 2025

An avalanche of information besets us on what to eat. It comes from the news, from influencers of every ilk, from scientists, from government, and of course from the food companies. Super foods? Ultra-processed foods? How does one find a source of trust and make intelligent choices for both us as individuals and for the society as a whole.A new book helps in this quest, a book entitled Food Intelligence: the Science of How Food Both Nourishes and Harms Us. It is written by two highly credible and thoughtful people who join us today.Julia Belluz is a journalist and a contributing opinion writer for the New York Times. She reports on medicine, nutrition, and public health. She’s been a Knight Science Journalism Fellow at MIT and holds a master’s in science degree from the London School of Economics and Political Science. Dr. Kevin Hall trained as a physicist as best known for pioneering work on nutrition, including research he did as senior investigator and section chief at the National Institutes of Health. His work is highly regarded. He’s won awards from the NIH, from the American Society of Nutrition, the Obesity Society and the American Physiological Society.

E281: Is ultra-processed food still food?

August 28, 2025

In this episode, Dr. Chris van Tulleken, a physician and professor from University College London, discusses the alarming reality of ultra-processed foods (UPFs) and their impact on our health. Van Tulleken details his own month-long experiment consuming UPFs, resulting in significant weight gain and various health issues. He explains the scientific definition of UPFs, their industry-driven design to enhance addictiveness, and the broader implications on public health. The conversation delves into the addiction potential of UPFs, their effect on brain chemistry, and the critical need for policy change to address these issues. Hosted by Kelly Brownell, this episode offers a thorough, eye-opening exploration of why we can’t stop eating food that isn’t really food.

E278: Here’s how screen time affects our kids’ eating, activity, and mental health

July 15, 2025

Parents, educators, public health experts, legal officials like State Attorneys General, and a surprisingly bipartisan collection of legislators have raised alarms and taken action to control the impact of digital media on children. There are a great many issues to be concerned about, one of which is food, nutrition, and health. Today’s guests are in a unique position to address this issue and help us think of a path forward. Dr. Amanda Staiano is associate professor in Pediatric Obesity and Health Behavior at the Pennington Biomedical Research Center, which is affiliated with Louisiana State University. Dr. Thomas Robinson is the Irving Schulman Endowed Professor in Child Health and professor of Pediatrics and of Medicine at the Stanford University Medical School. Dr. Staiano and Robinson have done groundbreaking work on children’s exposure to digital media.

E270: Do food labels influence kids shopping choices?

April 16, 2025

As any parent knows, it is really important to help our children to make healthy food choices. I know as a father who cooks for my child, it is really critical that I introduce her to fruits and vegetables and encourage whole grains and try to manage the amount of additional sugars, but it’s hard. We do this with the goal of trying to make sure that our child is able to eat healthy once she leaves the home. That she’s able to make healthy choices there. But it’s not just about the future. My child is making choices even today at school and outside of school, and the question is, can we help her make those choices that are going to lead to healthy food outcomes?
Do food labels on products encourage children to make healthy food choices if it indicates good ingredients? Or would labels that warn against nutrients of concern actually discourage kids from using those or consuming those products? Today we’re going to actually explore those questions in a particular context- in Chile. In 2016, the Chilean government implemented a comprehensive set of obesity prevention policies aimed at improving the food environment for children. Last year on this podcast, we actually explored how the Chilean food laws affected school food purchases. But now today, we’re going to explore how food labels are influencing youth outside of school. It is my pleasure to welcome back my colleagues, Gabriela Fretes, who is an associate research fellow at the International Food Policy Research Institute, or IFPRI; and Sean Cash, who is an economist and chair of the Division of Agriculture, food and Environment at Tufts University at the Freedman School of Nutrition, Science and Policy.

E266: What’s next for school meal quality?

March 13, 2025

The food and nutrition landscape in our schools is really important. School meals affect the health, wellbeing, energy, vitality, and ability to learn for millions and millions of children. And for those whose family struggled to buy food, the importance of school meals cannot be overstated. This makes decisions about what foods are served in schools and where they come from. Highly consequential and raises issues about national and state nutrition policies, the influence of big food companies in shaping this picture and lots more. It’s a good time to unravel all this, which we can do today. Thanks to two experts with us. Dr. Marlene Schwartz is Professor of Human Development and Family Sciences and Director of the Rudd Center for Food Policy health at the University of Connecticut. Mara Fleishman is CEO of the Chef Ann Foundation, where she has been a leader advancing school food change, advocating for scratch cook meals that promote children’s health and for more sustainable food systems.

E261: Here’s what you don’t know about food safety

January 23, 2025

For many years in talks that I gave, I showed a slide with an ingredient list from a food most people know. Just to see if the audience could guess what the food was, based on what it was made of. It was very hard for people to guess. A few people might come close, but very few people would guess. And it was pretty hard because the food contained 56 ingredients. This is in one food. And the ingredient list had chemical names, flavorings, stabilizers, and heaven knows what else. But 56 things in one, just one food in the food supply. Pretty amazing to think what kind of things we’re bombarded with in foods we eat in our everyday lives. So, one key question is do we know what all this stuff does to us, either individually or in combination? So, how does ingredient 42 interact with ingredient 17? Even if we happen to know what they do individually, which we may not. And, who’s looking out for the health of the population, and who has regulatory control over these things? Today we’re joined by the author of a new article on this topic published in the American Journal of Public Health. Jennifer Pomeranz is an attorney and is Associate Professor of Public Health Policy and Management in the School of Global Public Health at New York University. The food, by the way, was a chocolate fudge Pop Tart.

E256: ATNI – driving market change towards nutrition

November 21, 2024

Now more than ever, it’s important to challenge the world’s food and beverage manufacturers to address nutrition issues like obesity and undernutrition. Today, we’re going to discuss the 2024 Global Access to Nutrition Index, a very important ranking system that evaluates companies on their nutrition related policies, product portfolios, marketing practices, and engagement with stakeholders. The index is an accountability strategy produced by ATNI, the Access to Nutrition Initiative, a global nonprofit foundation seeking to drive market change for nutrition. Our guest today is Greg Garrett, Executive Director of ATNI.

E208: Improve Your Microbiome – Improve Your Health

July 6, 2023

If you want to improve your digestion, your immune system, and your overall health, one might begin with a focus on a healthy gut microbiome. Today we’re talking with Stanford University professor of microbiology and immunology Dr. Justin Sonnenburg, co-author of the book entitled, “The Good Gut: Taking Control of Your Weight, your Mood, and Your Long-Term Health.” He and his wife, research scientists Dr. Erica Sonnenburg, argue that our typical modern diet has caused the microbial diversity or intestine to shrink substantially. Turns out that’s a big problem.

Related podcasts: Diet & Nutrition | Microbiome | Ultra-processed Food & Additives |

E204: The troubling unknowns of non-caloric sweeteners

May 4, 2023

As a society, we are eating and drinking low-calorie sweeteners more and more. Researchers are working to understand the long-term impact of such sweeteners for adults and, of course, for children. This interview is part of a series on the impact of sweeteners. Our guest today is Dr. Allison Sylvetsky, Associate Professor in the Department of Exercise and Nutrition Sciences at the George Washington University – Milken Institute School of Public Health.

Podcast Topic: Ultra-processed Food & Additives

The Leading Voices in Food

Podcast Topic: Ultra-processed Food & Additives

E285: Gut instincts, food, and decision making

E284: The Science of How Food Both Nourishes and Harms Us

E281: Is ultra-processed food still food?

E278: Here’s how screen time affects our kids’ eating, activity, and mental health

E270: Do food labels influence kids shopping choices?

E266: What’s next for school meal quality?

E261: Here’s what you don’t know about food safety

E256: ATNI – driving market change towards nutrition

E208: Improve Your Microbiome – Improve Your Health

E204: The troubling unknowns of non-caloric sweeteners