Food Sleuth Radio

Melinda Hemmelgarn
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Dec 12, 2025 • 28min

Kamyar Enshayan, PhD, former Director of The Center for Energy & Environmental Education at the University of Northern Iowa discusses food system failures and solutions.

Did you know that food is more than medicine? Join Food Sleuth Radio host and Registered Dietitian, Melinda Hemmelgarn for her conversation with Kamyar Enshayan, PhD, former Director of The Center for Energy & Environmental Education at the University of Northern Iowa. Enshayan describes food system failures and solutions, and encourages us to treasure the farmers and those who produce our food in ways that protect public health and our environment. He advocates for reclaiming regional agriculture and food systems. Read a sample of his opinion editorials here: https://www.desmoinesregister.com/story/opinion/columnists/iowa-view/2025/10/04/iowa-cancer-carcinogens-take-action/86463061007/ ; https://www.thegazette.com/guest-columnists/immigrants-make-life-richer/Related Websites:  https://ceee.uni.edu/
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Dec 5, 2025 • 28min

Debra Hendrickson, MD, author of The Air They Breathe: A Pediatrician on the Frontlines of Climate Change

Did you know that it’s impossible to separate children’s health from their environment? Join Food Sleuth Radio host and Registered Dietitian, Melinda Hemmelgarn for her conversation with Debra Hendrickson, MD, author of The Air They Breathe: A Pediatrician on the Frontlines of Climate Change. Hendrickson explains the unique physical and mental health challenges faced by children due to climate change, and offers collective, corrective actions and hope.Related Websites:  https://debrahendrickson.com/
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Nov 28, 2025 • 28min

Coco Newton, RD, MPH, CNS, discusses how she applies functional medical nutrition therapy for those diagnosed with ALS (Amyotrophic Lateral Sclerosis).

Did you know that there is hope for patients diagnosed with ALS? Amyotrophic Lateral Sclerosis (ALS), the debilitating neurodegenerative disease commonly known as “Lou Gehrig’s Disease,” is influenced by genetics and environmental factors, including living near bodies of water frequently impacted by harmful algal blooms. Join Food Sleuth Radio host and Registered Dietitian, Melinda Hemmelgarn for her conversation with Coco Newton, RD, MPH, CNS, a registered dietitian and holistic practitioner with expertise in functional medical nutritional therapy for improving the diet quality and quality of life for those diagnosed with ALS. Newton has been involved with Healing ALS: www.healingALS.org. She references the ALS Clinic at Duke University: https://alsclinic.duke.edu/our-research/ and the international conference on ALS and Motor Neurone Disease will be held Dec 5-7 in San Diego, CA: https://symposium.mndassociation.org/programme/. To learn more about algal blooms and neurodegenerative disease, see: https://www.eurekalert.org/news-releases/1087706 Related Websites: https://www.coconewton.com/
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Nov 21, 2025 • 28min

John Cardina, PhD, author of Lives of Weeds: Opportunism, Resistance, Folly, discusses man’s futile attempts to control “weeds.”

Did you know that Emily Dickinson wrote 4 tributes to the dandelion? Join Food Sleuth Radio host and Registered Dietitian, Melinda Hemmelgarn for her conversation with John Cardina, PhD, Professor Emeritus in the Dept. of Horticulture and Crop Science at the Ohio State University, former USDA research agronomist and author of Lives of Weeds: Opportunism, Resistance, Folly. Cardina discusses man’s largely futile fight against “weeds” on farms, lawns and gardens, the value of biodiversity and small holder farms, and why we should rethink our attempts to eradicate “invasives.” Related Websites: https://www.cornellpress.cornell.edu/book/9781501758980/lives-of-weeds/
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Nov 14, 2025 • 28min

Glenn Davis Stone, PhD, author of The Agricultural Dilemma: How Not to Feed the World, discusses the legend and unintended consequences of the Green Revolution.

Did you know that the “Green Revolution” is a cultural narrative that is rarely questioned? Join Food Sleuth Radio host and Registered Dietitian, Melinda Hemmelgarn for her conversation with Glenn Davis Stone, PhD, anthropologist, environmental scientist, and author of The Agricultural Dilemma: How Not to Feed the World. Stone discusses the legend and unintended consequences of the Green Revolution and explains that the Green Revolution didn’t speed up food production, but it did fuel the growth of fertilizers and pesticides. Stone advocates for the benefits of non-industrial, small-holder agriculture and helps us rethink the rhetoric and propaganda behind industrialized agriculture. https://www.sup.org/books/anthropology/smallholders-householdersRelated Websites: https://www.wlu.edu/profile/stone-glenn
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Nov 7, 2025 • 28min

Daniel Costa, Director of Immigration Law and Policy Research at the Economic Policy institute, discusses immigration policy and our food system.

Daniel Costa, an attorney and Director of Immigration Law and Policy Research at the Economic Policy Institute, sheds light on the vital role of immigrant labor in our food system. He shares how immigrants contribute significantly to U.S. workforce growth and the agriculture sector. Costa discusses the exploitative conditions faced by these workers, the lack of penalties for employers hiring undocumented labor, and the need for comprehensive immigration reform. He emphasizes debunking myths about immigrant workers and advocates for stronger protections and pathways to citizenship.
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Oct 31, 2025 • 28min

Leo Horrigan, Johns Hopkins Center for a Livable Future, and author of What if Soil Microbes Mattered? Our Health Depends on Them

Did you know that soil health is integral to life on earth? Join Food Sleuth Radio host and Registered Dietitian, Melinda Hemmelgarn for her conversation with Leo Horrigan, MS, Food System Correspondent for the Johns Hopkins Center for a Livable Future, and author of What if Soil Microbes Mattered? Our Health Depends on Them. Horrigan explains how and why successful farming starts below ground. He describes the symbiotic relationship between soil microbes and plants to support human and planetary health. He also explains how common practices used in conventional/chemical agriculture (synthetic pesticides, fertilizers and tillage) harm soil microbes.  On a positive note, regenerative/organic agriculture offers great potential for a brighter farming future.Related Websites:  https://clf.jhsph.edu/sites/default/files/2025-08/what-if-soil-microbes-mattered-1.pdf/
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Oct 23, 2025 • 28min

Mariana Chilton, PhD, MPH, author of The Painful Truth About Hunger In America: Why We Must Unlearn Everything We Think We Know -- and Start Again.

Mariana Chilton, PhD, MPH, is a Professor of Public Health and an advocate for food security. In this engaging discussion, she reveals that hunger stems from greed, not food shortage, and highlights how low wages keep many reliant on support systems. Chilton emphasizes the need for solidarity over charity to tackle hunger effectively. She also discusses the urgency of measuring food insecurity and reveals its profound impact on children's health and futures. Ultimately, she calls for compassion and structural policy solutions to combat food injustice.
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Oct 17, 2025 • 28min

Charlotte Vallaeys, MS, discusses the multiple benefits of organic, and confusion over “regenerative agriculture.”

Did you know organic agriculture has a legal definition, but “regenerative” agriculture does not?  Join Food Sleuth Radio host and Registered Dietitian, Melinda Hemmelgarn for her conversation with Charlotte Vallaeys, MS, independent consultant, advocate, and champion of organic agriculture. Board member of Organic Voices and the Organic Farming Research Foundation, Vallaeys discusses the definition of organic, its multiple benefits to health, environment and climate, and consumer confusion over the term “regenerative agriculture.” Related Websites: Real organic podcast: https://realorganicproject.org/charlotte-vallaeys-outcome-based-agriculture-pitfalls-episode-one-hundred-eight/
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Oct 9, 2025 • 28min

Heather Norman-Burgdolf, PhD, University of Kentucky, author of “Food Allergens: Alpha Gal.”

Did you know that the sugar responsible for alpha-gal allergy is widespread in processed food products, drugs and dietary supplements? Join Food Sleuth Radio host and Registered Dietitian, Melinda Hemmelgarn for her conversation with Heather Norman-Burgdolf, PhD, Associate Extension Professor in the Department of Dietetics and Human Nutrition at the University of Kentucky, and author of “Food Allergens: Alpha Gal.” Norman-Burgdolf discusses ways to navigate the alpha-gal allergy, which ranks as the tenth most prevalent food allergy in the United States.Related Websites: https://publications.ca.uky.edu/sites/publications.ca.uky.edu/files/FCS3646.pdf

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