Fat Science

Navigating the GLP-1 Wild West: A Conversation With Dr. Vin Gupta

Are you getting a GLP-1 prescription from someone who's never examined you?Dr. Vin Gupta, pulmonologist and former Chief Medical Officer at Amazon, joins Dr. Cooper to expose the dangerous gap between legitimate obesity medicine and the unregulated direct-to-consumer market. This conversation reveals why proper medical evaluation matters and how profit-driven platforms are exploiting desperate patients.KEY TAKEAWAYSGLP-1 medications require individualized medical evaluation, not one-size-fits-all prescribingDirect-to-consumer microdosing platforms lack FDA approval and proper medical oversightThe erosion of trust in healthcare has created opportunities for unregulated treatmentsComprehensive metabolic care includes regular lab work, body composition monitoring, and personalized treatment plansTechnology should enhance medical care, not replace proper physician evaluationNOTABLE QUOTE"I see so many people that come in, you know, they're obsessed with monitoring their HRV, their heart rate variability, and yet they had no idea they have pre-diabetes and they had no idea that they have triglyceride levels through the roof." — Dr. Emily CooperGUEST BIODr. Vin Gupta is a pulmonologist, public health expert, and medical analyst for NBC News. He served as Chief Medical Officer at Amazon and has dedicated his career to translating complex science into actionable health insights at both individual and population levels.GLOSSARYGLP-1 medications: Glucagon-like peptide-1 receptor agonists, medications that help regulate blood sugar and appetite, including brand names like Ozempic, Wegovy, and ZepboundMicrodosing: Taking smaller amounts of medication than officially prescribed or approvedDirect-to-consumer (D2C): Healthcare services that bypass traditional medical settings, often delivered through apps or online platformsHRV: Heart rate variability, a measurement of the variation in time between heartbeatsPre-diabetes: Blood sugar levels that are higher than normal but not high enough to be diagnosed as type 2 diabetesLinks & ResourcesPodcast Home: fatsciencepodcast.comCooper Center for Metabolism: coopermetabolic.comResources from Dr. Cooper: coopermetabolic.com/resourcesJoin Our Community: patreon.com/cw/FatSciencePodcastSubmit Your Question: questions@fatsciencepodcast.com or dr.c@fatsciencepodcast.comFat Science is supported by the Diabesity Institute, a nonprofit dedicated to increasing access to effective, science-based metabolic care.Disclaimer: This podcast is for informational purposes only and is not intended as medical advice. Please consult with a qualified healthcare provider for personalized recommendations.

What Happens to Your Body When You Stop Taking GLP-1s

What really happens when you stop GLP-1 medications — and are the headlines telling you the whole story? The answer is more nuanced than social media wants you to believe.This week on Fat Science, Dr. Emily Cooper, Mark Wright, and Andrea Taylor break down four recent studies on GLP-1 treatment outcomes, weight regain, and a groundbreaking new drug that could preserve lean mass during treatment. They walk through the methodology behind each paper, explain why two studies asking the same question got opposite answers, and reveal what a new monoclonal antibody called bimagrumab could mean for the future of metabolic treatment.Key TakeawaysWhen you stop treating any chronic metabolic condition, the condition returns — that's not failure, that's biology.Real-world data showed 56% of people who stopped filling GLP-1 prescriptions maintained or continued losing weight — likely because they continued working with their clinician on alternative treatments.A new monoclonal antibody called bimagrumab showed 11% body weight reduction on its own, while simultaneously increasing lean mass by 3% — without affecting appetite.When combined with semaglutide, bimagrumab reduced lean mass loss from 28% to just 11% of total weight lost.Not eating enough while on GLP-1s drives greater lean mass loss — nutrition is still the best tool for preserving muscle.Notable Quote"It wasn't my failure and it was disease underneath everything. Finding that out — that it wasn't my fault — that was the miracle of the whole process to me." — Andrea TaylorLinks & ResourcesPodcast Home: fatsciencepodcast.comCooper Center for Metabolism: coopermetabolic.comResources from Dr. Cooper: coopermetabolic.com/resourcesJoin Our Community: patreon.com/cw/FatSciencePodcastSubmit Your Question: questions@fatsciencepodcast.com or dr.c@fatsciencepodcast.comFat Science is supported by the Diabesity Institute, a nonprofit dedicated to increasing access to effective, science-based metabolic care.Disclaimer: This podcast is for informational purposes only and is not intended as medical advice. Please consult with a qualified healthcare provider for personalized recommendations

Mailbag: Fasting, Food Noise & GLP-1s

Ever wonder why fasting worked at first — then stopped? Or why you lost 80 pounds only to gain back 100?In this mailbag episode, Dr. Emily Cooper, Mark Wright, and Andrea Taylor tackle the most misunderstood topics in metabolic health. From the harsh reality of fasting culture to the surprising metabolic challenges faced by normal-weight individuals, this conversation validates what you've been experiencing and explains the science behind it. You'll also hear why GLP-1 medications aren't just weight loss drugs, why your body might be fighting you even when you're doing everything right, and what happens when your job — like shift work or firefighting — disrupts your metabolism for years.KEY TAKEAWAYSYou can have metabolic dysfunction at a normal weight with what appear to be normal labs, for example, when insulin is over suppressed from chronic under-fueling or overexercisingFasting triggers the same biological adaptation as any restrictive diet and typically results in weight regain that's 22 percent higher than starting weightFood noise is biological, not psychological, and stems from an imbalance of hormones and neurotransmitters signaling nutritional insecurityGLP-1 medications may improve immune function because metabolic health and immunity are deeply connectedShift work and chronic sleep disruption can cause real metabolic damage by weakening leptin signals, increasing insulin resistance, and amplifying hunger hormonesNOTABLE QUOTE"You can't trick your body. You have to have that foundational fueling in there." — Dr. Emily CooperLinks & ResourcesPodcast Home: fatsciencepodcast.comCooper Center for Metabolism: coopermetabolic.comResources from Dr. Cooper: coopermetabolic.com/resourcesJoin Our Community: patreon.com/cw/FatSciencePodcastSubmit Your Question: questions@fatsciencepodcast.com or dr.c@fatsciencepodcast.comFat Science is supported by the Diabesity Institute, a nonprofit dedicated to increasing access to effective, science-based metabolic care.Disclaimer: This podcast is for informational purposes only and is not intended as medical advice. Please consult with a qualified healthcare provider for personalized recommendations.

Why You Keep Waking Up at Night — What 15,000 Patient Encounters Reveal About Sleep and Metabolism

Are you getting eight hours in bed but still waking up exhausted?Dr. Emily Cooper shares groundbreaking findings from nearly 15,000 patient encounters at her metabolic clinic. The data reveals surprising connections between stress, eating frequency, sleep quality, and metabolic health — and why the number of hours you spend in bed doesn't tell the whole story.KEY TAKEAWAYSOver 60% of patients reported trouble staying asleep, even when they got eight hours in bedHigher stress levels were associated with double the rate of low energy and significantly worse sleep qualityEating frequency matters — patients eating five times per day reported the best sleep and highest energy levelsThe sweet spot between meals is two to four hours — longer gaps were linked to sleep disruption and low energyAny amount of alcohol was associated with fragmented sleep, regardless of stress levelsNearly 65% of patients were not hydrating adequately throughout the dayNOTABLE QUOTE"If your cortisol goes high, we can get the same effects that happen when we take steroids, which we know promote pre-diabetes, insulin resistance, weight gain." — Dr. Emily CooperLinks & ResourcesPodcast Home: fatsciencepodcast.comCooper Center for Metabolism: coopermetabolic.comResources from Dr. Cooper: coopermetabolic.com/resourcesJoin Our Community: patreon.com/cw/FatSciencePodcastSubmit Your Question: questions@fatsciencepodcast.com or dr.c@fatsciencepodcast.comFat Science is supported by the Diabesity Institute, a nonprofit dedicated to increasing access to effective, science-based metabolic care.Disclaimer: This podcast is for informational purposes only and is not intended as medical advice. Please consult with a qualified healthcare provider for personalized recommendations.

Mailbag: Your GLP-1 Questions: Hair Loss, Blood Sugar Spikes & Hormone Therapy

Think squashing your post-meal glucose spike is the healthy thing to do? What if that flat line on your CGM is actually telling your brain you didn't eat — and slowing your metabolism as a result?This week on Fat Science, Dr. Emily Cooper, Mark Wright, and Andrea Taylor open the mailbag to tackle listener questions from around the world — Australia, New Zealand, and across the U.S. They dig into hormone replacement therapy and metabolism, why your GLP-1 medication might be causing hair loss, what a normal blood sugar response actually looks like, and how lipedema differs from obesity. Dr. Cooper also revisits metabolic syndrome and why it's not outdated — just underutilized.Key TakeawaysHormone replacement therapy isn't a reliable tool for improving metabolism — it's better suited for symptom relief and bone health in specific situations.Progesterone, which must accompany estrogen if you still have your uterus, can actually disrupt metabolism in some women — acting almost like a steroid.A flat glucose line after eating isn't the goal — your brain needs to see glucose go up to register that you've been nourished and keep your metabolism running.Hair loss on GLP-1 medications is more likely tied to nutrient deficiencies (especially iron and protein) than the drugs themselves.Lipedema is a disease of the fat tissue itself — separate from obesity — and tirzepatide may help reduce the inflammatory symptoms even though it won't eliminate the fat deposits.Notable Quote"If your glucose is flat line, your brain's not very convinced that you ate much — and then you're not getting the metabolic benefit." — Dr. Emily CooperLinks & ResourcesPodcast Home: fatsciencepodcast.comCooper Center for Metabolism: coopermetabolic.comResources from Dr. Cooper: coopermetabolic.com/resourcesJoin Our Community: patreon.com/cw/FatSciencePodcastSubmit Your Question: questions@fatsciencepodcast.com or dr.c@fatsciencepodcast.comFat Science is supported by the Diabesity Institute, a nonprofit dedicated to increasing access to effective, science-based metabolic care.Disclaimer: This podcast is for informational purposes only and is not intended as medical advice. Please consult with a qualified healthcare provider for personalized recommendations.