Frank Yiannas is the vice president of food safety at Walmart—the world's largest food retailer. In that role, Frank oversees all food safety—as well as other public health functions—for Walmart, serving over 200 million customers around the world on a weekly basis. His scope of responsibilities includes food safety oversight of Walmart’s stores, Neighborhood Markets, and Sam’s Clubs. He is also charged with training and education of associates, food safety oversight of thousands of food suppliers, and a number of critical regulatory compliance issues.

Prior to joining Walmart in 2008, Frank was the director of safety and health for The Walt Disney Company, where he worked for 19 years. In 2001, under his tenure, Walt Disney World received the prestigious Black Pearl Award for corporate excellence in food safety by the International Association for Food Protection (IAFP).

As a frequent speaker at national and international conferences, Frank is known for his ability to build partnerships. He is also known for his innovative approaches to food safety. In 2008, Frank was given the Collaboration Award by the U.S. Food and Drug Administration. He is the 2007 recipient of the NSF International Lifetime Achievement Award for Leadership in Food Safety, and the 2015 Industry Professional Food Safety Hero Award by STOP Foodborne Illness. Frank is also a past president of IAFP and a past vice chair of the Global Food Safety Initiative. He is also an adjunct professor in the food safety program at Michigan State University (MSU), and in 2017 was awarded the MSU Outstanding Faculty Award.

Frank has authored two books—Food Safety Culture, Creating a Behavior-based Food Safety Management System, and Food Safety = Behavior, 30 Proven Techniques to Enhance Employee Compliance.

Frank is a registered microbiologist with the American Academy of Microbiology and holds memberships with several professional associations. Frank received his B.Sc. in Microbiology from the University of Central Florida and his Master of Public Health from the University of South Florida.

In this episode of Food Safety Matters, we speak to Frank about:

• Traditional food safety management vs. behavior-based food safety management
• Creating a successful food safety culture at Walmart
• Food safety programs implemented at Walmart stores
• Working with suppliers to improve food safety
• Walmart's initiatives around poultry and deli meat safety
• How Walmart associates use handheld technology for daily and periodic food safety checks
• His thoughts on blockchain technology, what it is, how it can improve the future of food safety, and how it could have possibly prevented past outbreaks
• How Walmart has started using blockchain traceability with some produce items
• Working with small suppliers who may be exempt from federal food safety regulations
• Advice for new food safety professionals

Bob Ferguson's Food Safety Insights Articles
Lessons Learned: Careers in Food Safety (August/September 2018)
Listeria: An Important Focus of Environmental Monitoring (June/July 2018)
Sanitation Verification for Allergen Control (April/May 2018)
Testing and Sanitation for Allergen Control (February/March 2018) 
Outsourcing: Pathogen Testing under the Microscope (December 2017/January 2018)
The New Face of Sanitation Programs: New Rules, New Challenges (October/November 2017)
A Closer Look at Environmental Monitoring in the Processing Plant (August/September 2017)
What Industry and FDA Are Thinking About FSMA Implementation (June/July 2017)
The Drivers of Differences in Food Safety Testing Practices (April/May 2017)
A Look at the Microbiology Testing Market (February/March 2017)

News Mentioned in This Episode
Chipotle to Retrain All Workers on Food Safety After Ohio Episode 
Chipotle Illness Outbreak; Employees Must Take Food Safety Test 
Delaware General Health District-Aug. 16 Update 
Caito Foods' pre-cut melon recall and Salmonella outbreak 
Caito Foods' salad Cyclospora outbreak
McDonald's/Fresh Express salad Cyclospora outbreak 
Court Orders EPA to Ban Chlorpyrifos, Pesticide Tied to Children's Health Problems 
Court Orders Trump EPA to Ban Controversial Pesticide 
Three Companies Flip; Reveal Suppliers of Romaine Linked to Deadly E. coli Outbreak
CDC's final romaine lettuce outbreak update

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Helena Bottemiller Evich is the Founder and Editor-in-Chief of Food Fix. She previously led coverage of food and agriculture at POLITICO for nearly a decade, winning numerous awards for her work, including a prestigious George Polk Award for a series on climate change and two James Beard Awards for features on nutrition and science. In 2022, she was a James Beard Award finalist for a deep dive on diet-related diseases and COVID-19. Helena is also a sought-after speaker and commentator on food issues, appearing on CNN, MSNBC, CBS, BBC, NPR, and other outlets. Her work is widely cited in the media and has also been published in the Columbia Journalism Review and on NBC News.

Frank Yiannas, M.P.H. is a renowned food safety leader and executive, food system futurist, author, professor, past president of the International Association of Food Protection (IAFP), and advocate for consumers. Most recently, he served under two different administrations as the Deputy Commissioner for Food Policy and Response at the U.S. Food and Drug Administration (FDA), a position he held from 2018–2023, after spending 30 years in leadership roles with Walmart and the Walt Disney Company.

Drew McDonald is the Senior Vice President of Quality and Food Safety at Taylor Fresh Foods in Salinas, California, where he oversees the quality and food safety programs across the foodservice, retail, and deli operations under both FDA and U.S. Department of Agriculture (USDA) jurisdictions. Mr. McDonald works with an impressive team developing and managing appropriate and practical quality and food safety programs for fresh food and produce products. He has more than 30 years of experience in fresh produce and fresh foods.

John Besser, Ph.D. worked for ten years as Deputy Chief of the Enteric Diseases Laboratory Branch at the U.S. Centers for Disease Control and Prevention (CDC), where he was involved in national and global programs to detect, characterize, and track gastrointestinal diseases. Prior to CDC, Dr. Besser led the infectious disease laboratory at the Minnesota Department of Health (MDH) for 19 years and served as a clinical microbiologist at the University of Minnesota Hospital for five years. He currently works as an independent contractor and consultant. Dr. Besser is the author or co-author of more than 70 publications. He received his Ph.D. and M.S. degree from the University of Minnesota.

Craig Hedberg, Ph.D. is a Professor in the Division of Environmental Health Sciences at the University of Minnesota and Co-Director of the Minnesota Integrated Food Safety Center of Excellence. He promotes public health surveillance as a prerequisite for effective food control, and his work focuses on improving methods for collaboration among public health and regulatory agencies, academic researchers, and industry to improve foodborne illness surveillance and outbreak investigations.

In this year-end episode of Food Safety Matters, we round up the top stories of 2025, covering U.S. federal food safety policy changes under the Trump Administration, MAHA- and state-led moves against food additives of concern and ultra-processed foods, infant formula safety, science on Listeria and biofilms, ongoing monitoring of avian flu, and AI food safety applications.

In this episode of Food Safety Matters, we speak to legal expert Brian P. Sylvester, J.D. about the rapidly evolving U.S. food regulatory landscape under the MAHA movement, and how food companies can prepare for state and federal policy changes regarding food dyes, GRAS ingredients, ultra-processed foods, and other areas.

In this episode of Food Safety Matters, we speak to Jay Berglind, the CEO of Aegis Foods and the maker of Fearless Eggs, known for its novel pasteurization process. Jay discusses the science behind Fearless Eggs’ method and what sets it apart from traditional pasteurization, and the importance of food safety innovation.

Tom Black is the First Assistant Secretary of the Exports and Veterinary Services Division at the Australian Government's Department of Agriculture, Fisheries, and Forestry. In this role, he is responsible for regulating and facilitating Australia's exports of animal commodities and certified organic products, while also providing the overarching technical food safety framework for both food exports and imports.

Gabor Molnar, Ph.D. is an Industrial Development Officer at the United Nations Industrial Development Organization (UNIDO), technically leading UNIDO's food safety work. As part of his responsibilities, Dr. Molnar designs and implements food safety capacity-building initiatives, mostly in Asia and Africa. He also represents UNIDO in various global forums, including the Codex Alimentarius Commission. Dr. Molnar is the main organizer of the Vienna Food Safety Forum (VFSF) and specializes in the domain of digitalization for food control and safety systems. Dr. Molnar holds a Ph.D. from Université Laval, as well as multiple master's degrees and certifications.