Are ultra-processed foods the hidden reason weight loss feels impossible?
Chuck Carroll is joined by Dr. Jim Loomis, medical director at Barnard Medical Center, to break down the science behind ultra-processed foods and their powerful impact on weight gain, metabolism, hunger, and fat storage.
From packaged snacks and fast food to so-called "healthy" convenience items, ultra-processed foods now make up a majority of the modern diet. Dr. Loomis explains how these foods affect appetite hormones, blood sugar, calorie intake, and the body's ability to lose weight — and why simply "eating less" often doesn't work when ultra-processed foods dominate the plate.
You'll learn:
- What qualifies as an ultra-processed food - Why these foods drive overeating and cravings - How ultra-processed foods interfere with fat loss - The role of fiber, nutrients, and food quality in weight control - What to eat instead to support sustainable weight loss
Whether you're trying to lose weight, improve metabolic health, or understand why progress has stalled, this episode delivers practical, evidence-based answers.
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About Us The Physicians Committee is dedicated to saving lives through plant-based diets and ethical and effective scientific research. We combine the clout and expertise of more than 17,000 physicians with the dedicated actions of more than 175,000 members across the United States and around the world.
