Fat Science

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 Takeaways
When 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 Taylor
Links & Resources
Podcast Home: fatsciencepodcast.com

Cooper Center for Metabolism: coopermetabolic.com

Resources from Dr. Cooper: coopermetabolic.com/resources

Join Our Community: patreon.com/cw/FatSciencePodcast

Submit Your Question: [email protected] or [email protected]

Fat 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

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 TAKEAWAYS
You 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 overexercising
Fasting triggers the same biological adaptation as any restrictive diet and typically results in weight regain that's 22 percent higher than starting weight
Food noise is biological, not psychological, and stems from an imbalance of hormones and neurotransmitters signaling nutritional insecurity
GLP-1 medications may improve immune function because metabolic health and immunity are deeply connected
Shift work and chronic sleep disruption can cause real metabolic damage by weakening leptin signals, increasing insulin resistance, and amplifying hunger hormones
NOTABLE QUOTE
"You can't trick your body. You have to have that foundational fueling in there." — Dr. Emily Cooper
Links & Resources
Podcast Home: fatsciencepodcast.com
Cooper Center for Metabolism: coopermetabolic.com
Resources from Dr. Cooper: coopermetabolic.com/resources
Join Our Community: patreon.com/cw/FatSciencePodcast
Submit Your Question: [email protected] or [email protected]
Fat 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.

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 TAKEAWAYS
Over 60% of patients reported trouble staying asleep, even when they got eight hours in bed
Higher stress levels were associated with double the rate of low energy and significantly worse sleep quality
Eating frequency matters — patients eating five times per day reported the best sleep and highest energy levels
The sweet spot between meals is two to four hours — longer gaps were linked to sleep disruption and low energy
Any amount of alcohol was associated with fragmented sleep, regardless of stress levels
Nearly 65% of patients were not hydrating adequately throughout the day
NOTABLE 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 Cooper
Links & Resources
Podcast Home: fatsciencepodcast.com
Cooper Center for Metabolism: coopermetabolic.com
Resources from Dr. Cooper: coopermetabolic.com/resources
Join Our Community: patreon.com/cw/FatSciencePodcast
Submit Your Question: [email protected] or [email protected]
Fat 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.

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 Takeaways
Hormone 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 Cooper
Links & Resources
Podcast Home: fatsciencepodcast.com

Cooper Center for Metabolism: coopermetabolic.com

Resources from Dr. Cooper: coopermetabolic.com/resources

Join Our Community: patreon.com/cw/FatSciencePodcast

Submit Your Question: [email protected] or [email protected]

Fat 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 when you do everything "right" — the GLP-1, the protein shake, the tracking — and the scale still won't budge? This episode reveals why doing everything “right” might actually be a big part of the problem.
This week on Fat Science, Dr. Emily Cooper, Mark Wright, and Andrea Taylor welcome Sandy, a listener from Pennsylvania who has been on the metabolic health journey for over a year. Sandy's story is one many listeners will recognize: decades of dieting starting in childhood, a body that kept adapting against her, and a medical system that kept telling her to try harder. But when Dr. Cooper reviews Sandy's actual lab work live on air, what she finds reframes everything — and offers a path forward that has nothing to do with restriction.
Key Takeaways
Suppressed leptin hides a portion of your body fat from your brain, and possibly signals your brain that you're underweight — so your brain fights weight loss even when your body doesn't need protecting.

Low insulin isn't always healthy; it can be a sign of the "selfish brain" redirecting precious glucose to the brain at the expense of your muscles.

Weight cycling — losing and regaining the same weight repeatedly — creates cardiovascular and metabolic risk.

Mechanical eating is the antidote to disordered eating: structured, non-restrictive fueling that rebuilds metabolic trust.

GLP-1 medications can suppress appetite, so under-eating becomes a real risk — especially for people already conditioned to restrict.

The goal isn't the number on the scale. It's metabolic stability and metabolic health, and those things are not the same.

Notable Quote
"It was such a revelation to me to hear you guys talk about it — it's a metabolic disorder. It's not a willpower issue, it's not a personal failing. It's something absolutely beyond my control. Like diabetes would be. Like migraines would be." — Sandy

Links & Resources
Podcast Home: fatsciencepodcast.com

Cooper Center for Metabolism: coopermetabolic.com

Resources from Dr. Cooper: coopermetabolic.com/resources

Join Our Community: patreon.com/cw/FatSciencePodcast

Submit Your Question: [email protected] or [email protected]

Fat 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.