
Plain English with Derek Thompson What’s the Matter With America’s Food?
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Sep 26, 2025 Joining the conversation are Kevin Hall, a former NIH nutrition researcher known for his work on ultra-processed foods, and Julia Belluz, a veteran health journalist with insights into how policies impact our food environment. They discuss how American health issues stem from inadequate food policies rather than just personal choices. Kevin shares findings from controlled trials on overeating driven by ultra-processed diets, while Julia highlights the historical roots of food regulation. Together, they advocate for targeted policies to improve food safety and nutrition.
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Biology Controls Eating Behavior
- Hall explains food intake is biologically regulated by gut-brain and hormonal signals integrated in the brain.
- He notes we still don't know which specific food attributes disrupt those signals and raise defended body weight.
Origins: Acute Safety Not Chronic Health
- Julia traces modern food regulation back to Wiley's poison-squad trials and Upton Sinclair's The Jungle.
- Those events created FDA and meat inspection but focused on acute poisoning, not chronic diet harms.
The GRAS Loophole Expanded Additives
- The 1950s Food Additives Amendment created a GRAS loophole allowing many additives without strong premarket review.
- By the 1990s companies could self-determine GRAS status, letting most new additives enter unchecked.







