Why Food Dyes Are Used and Their Health Evidence

If you’ve ever felt like you’re doing everything “right” with your health but still not seeing results, this episode is for you. I sit down with Dr. Jessica Knurick, a PhD in nutrition science and registered dietitian with over 15 years of experience in chronic disease prevention, to uncover why Americans are getting sicker. Spoiler: it’s not just about diet or exercise—it’s about the systems shaping our lives in ways we don’t even realize. 

We dive deep into how our food environment, healthcare structure, and political systems were built for profit, not people, and how that reality quietly shapes everything from what ends up in our grocery stores to who can afford preventive care. 

We also tackle the viral health debates taking over social media—like the Make America Healthy Again (MAHA) movement, raw milk, and claims about Tylenol and autism—using the latest scientific research to separate fact from fiction. 

You’ll leave feeling empowered to take action not just in your own kitchen but in your community. 

🎧 What you’ll learn: 

• Why chronic disease rates are skyrocketing—and how profit-driven systems are quietly fueling the epidemic 
• The surprising truths (and myths) behind viral health debates like raw milk, Tylenol, and the MAHA movement 
• How the U.S. food system prioritizes corporate profits over public health—and what that means for your grocery cart 
• What the MAHA movement gets right about wellness—and where it completely misses the mark 

👇 Reflect or share: What’s one health “truth” you’ve rethought after listening to this episode? I’d love to hear your take! 

✨ Homework: Pay attention to how your environment—what’s available, affordable, and marketed to you—shapes your health this week. Then ask yourself: If the system changed, how would your health change?

For more from Dr. Jessica Knurick:

• Her Substack: https://substack.com/@drjessicaknurick
• Her Instagram: https://www.instagram.com/drjessicaknurick/
• Her Website: https://www.jessicaknurick.com/

Ready to uplevel every part of your life? Order Liz’s book 100 Ways to Change Your Life: The Science of Leveling Up Health, Happiness, Relationships & Success now! 

Connect with Liz on Instagram @lizmoody or online at www.lizmoody.com. Subscribe to the substack by visiting https://lizmoody.substack.com/welcome. Buy our cute sweatshirts, conversation cards, and more at https://shop.lizmoody.com/.

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The Liz Moody Podcast cover art by Zack. The Liz Moody Podcast music by Alex Ruimy.

Formerly the Healthier Together Podcast. 

This podcast and website represent the opinions of Liz Moody and her guests to the show. The content here should not be taken as medical advice. The content here is for information purposes only, and because each person is so unique, please consult your healthcare professional for any medical questions.

The Liz Moody Podcast Episode 377.

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