EXPLAINER: What Happens to Your Body in 5 Days Without Ultra-Processed Food

EXPLAINER: What Happens to Your Body in 5 Days Without Ultra-Processed Food

May 14, 2026 · 8 min · Episode 264

About this episode

Dr. Robert Lufkin explains the physiological changes that occur in the body after quitting ultra-processed food for five days.

Ultra-processed food makes up over half the calories Americans eat - and over 60% for kids. Here's what the research shows happens inside your body in the first 5 days after you quit. In this episode of Health Longevity Secrets, Dr. Robert Lufkin walks through the hour-by-hour timeline: the glucose spikes that disappear within 24 hours, the insulin resistance that drops 30%+ in 48 hours, the gut microbiome that reorganizes in 3 days, the blood pressure that falls 6-8 mmHg in a week, and the N...

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Host: Robert Lufkin

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Organizations: Americans

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