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
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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
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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
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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
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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
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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
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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, Andrea Taylor, and Mark Wright break down five eye-opening research studies from 2025 that challenge everything you thought you knew about obesity, dieting, and metabolism.
The hosts explore surprising new evidence on fitness trackers, the metabolic power of joy (and dessert!), the risks of intermittent fasting, how yo-yo dieting can damage kidney health, and the permanent impact of dieting on your brain-gut connection.
Dr. Cooper shares clinical insights and explains why simple fixes—strict diets, calorie counting, and food restriction—can actually backfire, causing more harm than good. From the science of hormone signaling to the pitfalls of diet culture, the conversation reveals powerful new reasons to embrace flexibility, balance, and self-kindness on the journey to metabolic health.
Key Takeaways:
- Fitness trackers can dramatically underestimate calorie burn—errors can reach 93%, especially for people with higher body weight. Companies rarely test enough real-world diversity and may fudge numbers for marketing.
- Including dessert and “forbidden foods” in your diet leads to better metabolic outcomes, greater mental stability, and less risk of binge eating or weight regain. Joyful eating helps regulate critical hormones like leptin and ghrelin.
- Intermittent fasting is linked to hair loss. Energy deficits force the body to use fatty acids as fuel, which can damage hair follicle stem cells. Long-term fasting negatively disrupts glucose/insulin balance and destabilizes metabolism.
- Yo-yo dieting (weight cycling) now shows a direct connection with kidney damage—even in those at normal weight. Rapid weight shifts restrict kidney blood flow, raise cortisol, and cause irreversible damage.
- Dieting creates lasting changes in the microbiome and brain-gut signaling that promote weight regain and appetite dysregulation. Even a single round of weight cycling can create stubborn metabolic obstacles.
Personal Stories & Practical Advice:Andrea shares why dessert is a staple of her happiness—and how mental restriction backfires. Dr. Cooper gives real-world examples from patients: eating favorite foods can unlock better weight results, while “diet damage” often lingers until medical treatment repairs it.
Resources from the episode:Fat Science is a podcast on a mission to explain where our fat really comes from and why it won’t go and stay away. We are committed to creating a world where people are empowered with accurate information about metabolism and recognize that fat isn’t a failure. This podcast is for informational purposes only and is not intended to replace professional medical advice.
Check out our new website where you can ask a mailbag question. If you have a question for Dr. Cooper, a show idea, feedback, or just want to connect, email us at questions@fatsciencepodcast.com or dr.c@fatsciencepodcast.com.
Connect with Dr. Emily Cooper on LinkedIn.Connect with Mark Wright on LinkedIn.Connect with Andrea Taylor on Instagram.
REFERENCES FOR THIS EPISODEAlshurafa, N., et al. (2025). “More accurate fitness tracking for people with obesity.” *Scientific Reports*, Northwestern University Feinberg School of Medicine.Alfouzan, N.W., & Nakamura, M.T. (2025). “Reduced food cravings correlated with a 24-month period of weight loss and weight maintenance.” *Physiology & Behavior*, Vol. 291.Chen, H., Liu, C., Cui, S., et al. (2025). “Intermittent fasting triggers interorgan communication to suppress hair follicle regeneration.” *Cell*, Vol. 188.The Endocrine Society (2025). “Yo-yo dieting may significantly increase kidney disease risk in people with type 1 diabetes.” *Journal of Clinical Endocrinology & Metabolism*, February 2025.Fouesnard, M., et al. (2025). “Weight cycling deregulates eating behavior via the induction of durable gut dysbiosis.” *Advanced Science*, 2025