Public health scientist and nutrition communicator Dr Jessica Knurick joins me to explore the systems shaping the health of Americans today. Jessica has become a trusted voice by helping people understand the connection between personal choices, policy decisions and the broader environment we live in.
In this episode we examine why chronic disease continues to rise, how misinformation spreads so easily, and what is really happening within food and public health policy. Jessica explains the gap between individual behaviour and system level reality, and why evidence based solutions are struggling to gain traction.
What We Cover
- How Jessica became a leading communicator on public health and nutrition
- The difference between individual guidance and system level policy
- Why most Americans do not meet nutrition and physical activity recommendations
- The rise of MAHA and why its proposed solutions miss the true drivers of chronic disease
- How regulation, subsidies and corporate incentives shape food choices
- The facts behind food dyes, additives and the GRAS loophole
- SNAP, who it supports and why defunding it would be harmful
- What meaningful policy change would look like for improving chronic disease and child health
Jessica offers a clear and compassionate explanation of the forces shaping America’s health, reminding us that real solutions require system level change paired with individual agency. This is an essential conversation for anyone trying to make sense of the current nutrition landscape.
You can connect with Dr Jessica Knurick on Instagram and TikTok, or visit her website and Substack to explore her work and evidence based insights on public health, nutrition and the systems shaping our wellbeing.
- Intro (00:00:00)
- The Unexpected Moment That Changed Everything (00:01:26)
- The Hidden Systems Behind Your Health (00:09:14)
- Agencies That Protect (or Fail) Public Health (00:18:11)
- The Dietary Guidelines You Thought You Knew (00:20:32)
- “Toxins,” Food Dyes, and the Real Story Behind Processed Foods (00:38:13)
- The Corporate Playbook Shaping America’s Health (00:47:56)
- A Program Millions Rely On… Yet Few Understand (00:57:38)
- The Hidden Battles Over Food Regulation (GRAS, Additives & More) (01:12:16)
- Science Funding, Misinformation, and Who Gets to Shape the Narrative (01:19:25)
- If You Want Better Health in America, Start Here (01:30:24)
Related episodes:
- Dr David Katz – Why Nutrition Science Is So Confusing (and How to Fix It)
- Dr Christopher Gardner – The Truth About Saturated Fat and the New Dietary Guidelines
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More about Jessica Knurick
Dr Jessica Knurick is a science communicator and nutrition scientist, specializing in chronic disease prevention. She educates on nutrition science, food and nutrition policy, and how these forces shape public health. Known for her clear, evidence-based communication, Dr Jessica helps people navigate nutrition information with a critical eye, breaking down complex topics and addressing common misconceptions. As a science communicator, she is passionate about making science accessible, practical, and grounded in real-world impact.
