S1 Ep105: Understanding ultraprocessed foods in the American diet, with Krista Blackwell, Ph.D.

S1 Ep105: Understanding ultraprocessed foods in the American diet, with Krista Blackwell, Ph.D.

Author: Medical Economics November 27, 2025 Duration: 27:28
Krista Blackwell, Ph.D., clinical assistant professor of biomedical sciences at the University of South Carolina School of Medicine, Greenville, joins the show to talk about two new reports from the U.S. Centers for Disease Control and Prevention (CDC) and the American Heart Association (AHA) examining ultraprocessed foods and their growing role in the American diet.

Blackwell explains why youth consumption stood out in the data, how convenience, family routines, school meals and food marketing influence eating patterns, and what the latest research says about cardiometabolic risks. She also discusses how primary care physicians can approach nutrition counseling more effectively using motivational interviewing and principles of culinary medicine.

AHA report:
"Ultraprocessed Foods and Their Association With Cardiometabolic Health: Evidence, Gaps, and Opportunities: A Science Advisory From the American Heart Association" https://www.ahajournals.org/doi/epub/10.1161/CIR.0000000000001365

CDC report:
"Ultra-processed Food Consumption in Youth and Adults: United States, August 2021–August 2023"
https://www.cdc.gov/nchs/products/databriefs/db536.htm

Music Credits:
Midnight Jazz by Alexey Anisimov - stock.adobe.com
Relaxing Lounge by Classy Call me Man - stock.adobe.com
A Textbook Example by Skip Peck - stock.adobe.com

Editor's note: Episode timestamps and transcript produced using AI tools.

0:00 — Intro

Overview of today’s topic: new CDC and American Heart Association reports on ultra-processed foods.

1:30 — First impressions of the new data
Dr. Blackwell explains why the findings align with lifestyle-medicine training and culinary-medicine education.

2:43 — CDC survey surprises
Why children ages 6–11 had the highest intake of ultra-processed foods.

3:56 — Pandemic effects on diet
How COVID-19 changed food preparation, access, and reliance on processed foods differently for different populations.

5:56 — Why kids consume so many ultra-processed foods
Marketing, school meals, fast-food access, and environmental factors.

6:40 — Key takeaways from the AHA scientific advisory
What the advisory says about saturated fat, sugar, sodium, additives, and unknowns about processing techniques.

8:47 — Are 70% of grocery-store products “bad”?
How to evaluate ultra-processed foods using nutrition labels and the “1:1 sodium-to-calories” rule taught in culinary medicine.

10:24 — How physicians can approach nutrition counseling
Motivational interviewing, identifying small changes, and real-world examples for primary care.

12:20 — How patients respond to motivational interviewing
Why meeting people where they are leads to better engagement.

14:09 — What culinary medicine looks like in practice
Hands-on patient cases, meal prep, and teaching medical students practical nutrition skills.

16:29 — What future research needs to explore
Additives, processing methods, and understanding their impact on cardio-metabolic disease.

17:41 — The GLP-1 conversation
How GLP-1 drugs fit into the gut-brain axis research and what they mean for individualized patient care.

19:29 — Ultra-processed foods and national policy
How MAHA and recent federal attention could accelerate progress.

21:03 — Defining “ultra-processed” foods
Why the lack of a unified definition complicates dietary guidelines.

22:23 — Where primary care physicians can learn more
Culinary-medicine certification and integrating nutrition into practice.

24:12 — What global models can teach the U.S.
Australia and EU “health scores” and how clearer labeling could help patients.

25:47 — Closing thoughts
Full-circle wrap-up and final remarks from Richard Payerchin and Dr. Blackwell.

26:12 — Outro
Show credits and where to find future episodes.

Medical Economics presents Off the Chart: A Business of Medicine Podcast, a series dedicated to the complex realities of running a healthcare practice. This isn't a clinical discussion; it's a frank conversation about the financial, operational, and strategic challenges that define success in modern medicine. Each episode delves into the nuanced decisions behind practice management, from navigating evolving reimbursement models and implementing efficient workflows to thoughtful staff leadership and sustainable growth strategies. We explore the intersection of patient care and sound business principles, offering actionable insights for physicians and administrators who aim to build resilient, patient-centered organizations. The podcast features candid interviews with practitioners, consultants, and industry experts who share their real-world experiences, both their solutions and their setbacks. You'll hear detailed analyses of marketing in a digital age, the nuances of value-based care contracts, and the long-term planning required for a thriving practice. It's a resource for those who understand that excellent medicine requires a solid foundation in the business of medicine, providing depth and perspective often missing from day-to-day operations. Tune in for a pragmatic and unvarnished look at the charts that matter most-the ones that determine the health of your practice and your ability to serve your community effectively for years to come.
Author: Language: English Episodes: 100

Off the Chart: A Business of Medicine Podcast
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