Why GLP-1 Medications Work Even When the Scale Doesn't Move
Fat Science
What if the scale isn't moving, but your health is dramatically improving?
If you've ever felt discouraged because the number on the scale won't budge—even on a GLP-1 medication—this episode will change how you think about these drugs. Dr. Cooper breaks down the research showing that the biggest benefits have nothing to do with weight loss. It's all about metabolic health.
This Week on Fat Science
Dr. Emily Cooper, Mark Wright, and Andrea Taylor expl
info_outline
Mailbag: Food Tracking, Mechanical Eating Troubleshooting, COVID & Metabolism, and Metformin + GLP-1 Synergy
Fat Science
This week on Fat Science, Dr. Emily Cooper, Mark Wright, and Andrea Taylor answer listener mailbag questions from California, the UK, France, Washington, Wyoming, and beyond.
The team breaks down why Dr. Cooper does not recommend calorie tracking (and when limited tracking can make sense), how to build confidence in eating without data, and why “mechanical eating” sometimes needs medical customization—especially for people with slow gut transit or gastroparesis-like symptoms. info_outline
Mailbag: GLP-1 Weight Regain, Meals vs Snacks, and Why Some People Don’t Respond
Fat Science
his week on Fat Science, Dr. Emily Cooper, Mark Wright, and Andrea Taylor answer listener mailbag questions that get to the heart of metabolic health. The team explains the real difference between meals and snacks, discusses whether GLP-1 medications can be appropriate for children in complex cases, explores why some people appear to be “non-responders” to Wegovy, and breaks down why alarming headlines about rapid weight regain miss the bigger metabolic picture. They also explain how to set
info_outline
What the Headlines Get Wrong About GLP-1 Drugs and Metabolism
Fat Science
This week on Fat Science, Dr. Emily Cooper, Mark Wright, and Andrea Taylor break down two GLP-1 studies that challenge a major media myth: GLP-1 medications don’t drive weight loss just because people eat less. Instead, drugs like tirzepatide and semaglutide create direct metabolic shifts—including increased fat oxidation and improved fuel partitioning—regardless of appetite.
The team also explores mechanical eating, the psychological impact of “diet food,” and Andrea’s 13-yea
info_outline
GLP-1 Mailbag: Weight Regain, Leptin Resistance, Hypoglycemia & Why Calories Aren’t the Problem
Fat Science
This week on Fat Science, Dr. Emily Cooper, Mark Wright, and Andrea Taylor tackle a wide-ranging mailbag episode with listener questions from the U.S., UK, and Europe. Topics include unexpected weight regain on GLP-1s, post-meal sleepiness and hypoglycemia, metabolic dysfunction despite normal labs, GLP-1 dosing strategies, and why these medications are about metabolism, not appetite suppression.
Key Questions Answered
- Why can weight regain happen on info_outline
Childhood Obesity, Eating Disorders & GLP-1s: Why It’s Not Your Fault
Fat Science
This week on Fat Science, Dr. Emily Cooper, Mark Wright, and Andrea Taylor talk with pediatric eating disorder specialist Dr. Julie O’Toole (Kartini Clinic) and pediatric obesity expert Dr. Evan Nadler about what childhood obesity really is: a biologic, metabolic disease—not a willpower problem and not a failure of parenting.
They explore how excess weight, constant hunger, and disordered eating in kids are often signs of underlying metabolic dysfunction and genetics—and why the old
info_outline
I’m Working Out—So Why Am I Getting Fatter?
Fat Science
This week on Fat Science, Dr. Emily Cooper, Mark Wright, and Andrea Taylor talk with exercise physiologist Russell Cunningham and patient Becca Wert about a counterintuitive reality: for some people, exercise can actually slow metabolism, stall weight loss, and trigger weight gain—especially when the brain senses a threat to energy availability.
Dr. Cooper explains how overtraining, under-fueling, and even thinking about workouts can activate famine signals in the brain and shut down
info_outline
The Latest GLP-1 News
Fat Science
This week on Fat Science, Dr. Emily Cooper, Mark Wright, and Andrea Taylor unpack the biggest GLP-1 headlines from around the world—from the World Health Organization’s first-ever GLP-1 obesity guidelines to access battles, brain research, and the coming wave of generics and new meds.
Dr. Cooper explains what the WHO’s move really means for patients, why long-term treatment matters, and how policy decisions in places like California and India could reshape who actually benefits from
info_outline
Listener Mailbag: Set Point Theory, Trauma & Metabolism, and Why 1200 Calories Can Still Lead to Weight Gain
Fat Science
This week on Fat Science, Dr. Emily Cooper, Mark Wright, and Andrea Taylor answer listener questions about BMI cutoffs, weight cycling, metabolic adaptation, trauma, GLP-1 differences, and why some people gain weight on ultra-low calories. Dr. Cooper explains what’s really happening inside the metabolic system and why individualized treatment—not dieting—creates sustainable change.
Key Questions Answered
- If my BMI doesn’t “qualify” for GLP-1s, is Na info_outline
A Patient’s Guide to Taking Back Your Health
Fat Science
Dr. Emily Cooper, Mark Wright, and Andrea Taylor talk with Maria from Buffalo, a longtime listener who shares her lifelong journey with obesity, psoriatic arthritis, and binge eating—and how finally understanding the science of metabolism gave her hope. Maria describes early childhood weight gain, joint damage, and years of restrictive dieting and food shame, then explains how GLP‑1 therapy (Zepbound) plus mechanical eating helped her lose about 50 pounds while eating more food, more often, and with
info_outlineThis week on Fat Science, Dr. Emily Cooper, Mark Wright, and Andrea Taylor talk with exercise physiologist Russell Cunningham and patient Becca Wert about a counterintuitive reality: for some people, exercise can actually slow metabolism, stall weight loss, and trigger weight gain—especially when the brain senses a threat to energy availability.
Dr. Cooper explains how overtraining, under-fueling, and even thinking about workouts can activate famine signals in the brain and shut down key hormone pathways and what it takes to rebuild trust so movement becomes helpful instead of harmful.
Key Questions Answered
- How can exercise trigger metabolic slowdown and weight gain instead of weight loss?
- What lab markers (leptin, ghrelin, thyroid, cortisol, sex hormones) signal that your body is in “conservation mode”?
- Why did Becca lose more than 120 pounds after stopping intense workouts—and what did her COVID experience reveal about her metabolism?
- How did Russell’s overtraining syndrome develop, and what did his recovery teach him about fueling, rest, and nervous system regulation?
- How should fueling before, during, and after activity look different for people who are highly sensitive to energy deficits?
- When is it time to pull back on exercise, even if every message you’ve heard says “move more”?
Key Takeaways
- Exercise is stress, not magic. When the brain perceives low energy or famine risk, it can respond to exercise by slowing metabolism, shutting down hormones, and defending body fat.
- Labs tell the story. Low leptin with high “famine signals,” along with thyroid, cortisol, and reproductive hormone suppression, are red flags that the body is conserving energy—not freely burning fuel.
- Fueling beats punishment. For sensitive metabolisms, you often “can’t overdo the fueling” around movement—sports drinks and carbs, even for short sessions, can help reassure the brain that it’s safe.
- Movement ≠ grind. Reframing exercise as enjoyable movement and nervous system regulation (walking, gentle climbing, yard work) helps break from all-or-nothing “training” mindsets that can backfire.
Dr. Cooper’s Actionable Tips
- If your weight climbs or stalls despite hard workouts and restricted eating, talk with a clinician about metabolic labs instead of just pushing harder.
- Cushion any exercise with real fuel: eat before, add carbs/electrolytes during, and refuel after—especially if you have a history of dieting, overtraining, or weight cycling.
- Consider starting with low-intensity, pleasant movement and always “leave gas in the tank” instead of chasing exhaustion as the goal.
Notable Quote“Exercise should not be used as a weight loss tool. It should be used as a performance and a health tool.” — Dr. Emily Cooper
Links & ResourcesPodcast Home: Fat Science Podcast Website – https://fatsciencepodcast.com/Cooper Center for Metabolism & Fat Science Episodes: https://coopermetabolic.com/podcast/Resources and education from Dr. Cooper: https://coopermetabolic.com/resources/Submit a Show Question: questions@fatsciencepodcast.comDr. Cooper direct show email: dr.c@fatsciencepodcast.com
Fat Science is your source for breaking diet myths and advancing the science of true metabolic health. No diets, no agendas—just science that makes you feel better. The show is informational only and does not constitute medical advice.