The Obesity Guide with Matthea Rentea MD

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Get my free Podcast Roadmap—a simple guide to help you find the episodes that matter most to your journey. Whether you're on GLP-1s, navigating plateaus, or just starting out, there's something here for you.

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How to Rebuild Your Routine When Life Has Wiped You Out May 18, 2026

Show notes

After pouring everything into my recent in-person retreat, coming home felt harder than I expected. I was sleeping in on weekends, struggling with my normal routine, and asking myself, "Why can't I just get it together?"

Turns out, even good things are exhausting, and pushing yourself to bounce back at full speed only makes it worse. In this episode, I'm sharing the four strategies that helped me rebuild my energy and momentum without forcing myself back to 100%. If you've ever crashed after a big season of life, I think this one will hit home.

References

Folly Nutrition Hair Health Gummies (Use code MATTHEA)

Ep. 170. Losing Weight and Losing Hair? Here's What to Do with Dr. Katherine Nolan

Audio Stamps

00:30 – What Dr. Rentea’s recent retreats have taught her about energy management and rest.

03:21 – Dr. Rentea’s experience with hair loss and the two-pronged approach (prescription + supplements) that's finally making a difference.

09:40 – Ditching the "restart at 100%" mentality and rebuilding consistency before intensity.

11:07 – Finding your floor. What's the smallest habit you can stick to right now?

12:22 – Dropping the shame. When you're mentally exhausted, comfort-seeking is your brain doing its job.

13:13 – Ways to reduce friction and make it easy to show up, so you’re not relying on motivation when you're exhausted.

14:28 – Why it’s normal for your comeback to feel boring.

Join The Next Chapter, a five-month experience to make space for your health, work toward a meaningful goal, and have some fun along the way—get the details and enroll here by October 30th.

Not Sure Where to Start With the Podcast? I’ve Got You.

Send a Text Message. Please include your name and email so we can answer you! Please note, this does not subscribe you to our email list, it's just to answer if you have a questions for us.

What GLP-1s Are Revealing About Addiction and the Brain with Dr. Nishant Kumar May 11, 2026

Show notes

“Doc, I just don't feel like drinking alcohol anymore."

Addiction psychiatrist Dr. Nishant Kumar kept hearing it. Patient after patient, unprompted. And nothing in their lives had changed… except one thing. They'd started a GLP-1.

What does that tell us about the brain, addiction, and our relationship with food?

In this episode, Dr. Kumar unpacks exactly that. We talk about what GLP-1s are revealing about cravings and the brain, how to recognize when your relationship with food has become a problem, how to find the right help, and the lifestyle factors that matter more than you might expect.

References

Overeaters Anonymous

Join The Next Chapter, a five-month experience to make space for your health, work toward a meaningful goal, and have some fun along the way—get the details and enroll here by October 30th.

Not Sure Where to Start With the Podcast? I’ve Got You.

Send a Text Message. Please include your name and email so we can answer you! Please note, this does not subscribe you to our email list, it's just to answer if you have a questions for us.

Skin Removal Surgery After Weight Loss: What You Need to Know with Dr. Beckman May 04, 2026

Show notes

We talk a lot about losing weight… but rarely about what it actually feels like to live in that new body. And for a lot of people, that experience includes the physical and emotional impact of excess skin.

Excess skin isn’t just about appearance. It's the rashes, the infections, the discomfort that makes everyday movement harder than it should be. It's the frustration of working so hard to transform your body and still not feeling fully at home in it.

In this episode, I sit down with Dr. Beckman, a board-certified plastic surgeon based in Carmel, Indiana, who specializes in body contouring for post-weight loss patients. She breaks down exactly when to seek a consult, what procedures are most common, how to prepare your body for the best results, and what life can look like on the other side of surgery.

References

Connect with Dr. Beckman:

Practice Instagram: @myplasticsurgerygroup

Dr Beckman's Instagram: @dibeckmanmd

Website: https://myplasticsurgerygroup.com/

Join The Next Chapter, a five-month experience to make space for your health, work toward a meaningful goal, and have some fun along the way—get the details and enroll here by October 30th.

Not Sure Where to Start With the Podcast? I’ve Got You.

Send a Text Message. Please include your name and email so we can answer you! Please note, this does not subscribe you to our email list, it's just to answer if you have a questions for us.

Losing Weight and Losing Hair? Here's What to Do with Dr. Katherine Nolan Apr 27, 2026

Show notes

It’s one of the most distressing side effects people can experience during a weight loss journey, yet almost no one warns you about it.

At first, it’s easy to dismiss. Then it starts showing up everywhere: in the shower drain, on your pillow, and in your hands every time you run your fingers through your hair.

In this episode, I’m joined by board-certified dermatologist and hair loss specialist Dr. Katherine Nolan to break down why rapid weight loss can trigger shedding, how the hair growth cycle actually works, which labs to ask your doctor for, and when medication might make sense.

We’ll also talk through some of the biggest myths, including why expensive serums and biotin supplements are not usually the fix people hope they are.

References

Connect with Dr. Katherine Nolan:

A four-month guided recalibration for your metabolism, nervous system, and daily rhythm. Enrollment closes May 1st.

Join The Next Chapter, a five-month experience to make space for your health, work toward a meaningful goal, and have some fun along the way—get the details and enroll here by October 30th.

Not Sure Where to Start With the Podcast? I’ve Got You.

Send a Text Message. Please include your name and email so we can answer you! Please note, this does not subscribe you to our email list, it's just to answer if you have a questions for us.

8 Health Basics That Beat Every Supplement, Tracker and Program Apr 20, 2026

Show notes

I've been thinking a lot lately about how much we overcomplicate our health. Tracking 15 different metrics, obsessing over the perfect supplement, debating which programme is best — while the simple basics just... aren't happening. I catch myself doing it too.

So in this episode, we're rewinding right back to basics with the 8 things that actually matter for your health. Not all at once, not perfectly, just one small area at a time until it sticks.

If you feel like you've been doing all the things but still aren't making the progress you expected, consider this your reset. Simple, practical, and actually doable.

References

Body Composition Decoded

30/30 Program (Sept 2026 registration now open)

Ep 164. Jacqui Cook on GLP-1 Weight Loss, Maintenance Fears, and Letting Go of Diet Rules

A four-month guided recalibration for your metabolism, nervous system, and daily rhythm

Join The Next Chapter, a five-month experience to make space for your health, work toward a meaningful goal, and have some fun along the way—get the details and enroll here by October 30th.

Not Sure Where to Start With the Podcast? I’ve Got You.

Send a Text Message. Please include your name and email so we can answer you! Please note, this does not subscribe you to our email list, it's just to answer if you have a questions for us.

Tired, Hungry, and Stuck? How Poor Sleep Affects Hormones, Cravings, and Weight Loss with Dr. Funke Afolabi-Brown Apr 13, 2026

Show notes

You might be blaming your hormones, your medication, or yourself... when the real problem could be your sleep.

Sleep is one of the most overlooked parts of metabolic health. And when it's off, everything feels harder. You feel hungrier. Your cravings get stronger. Your energy drops. Your blood sugar is harder to manage. Progress slows down, even when you feel like you're doing everything right.

In this episode, sleep medicine physician Dr. Funke Afolabi-Brown explains why sleep matters so much, what could be disrupting yours, and why waking up exhausted is not something you should just accept.

References

Connect with Dr. Funke Afolabi-Brown:

Restful Sleep MD: Website

Restful Sleep MD: Instagram

Restful Sleep MD: LinkedIn

Restful Sleep MD: YouTube

A four-month guided recalibration for your metabolism, nervous system, and daily rhythm

Join The Next Chapter, a five-month experience to make space for your health, work toward a meaningful goal, and have some fun along the way—get the details and enroll here by October 30th.

Not Sure Where to Start With the Podcast? I’ve Got You.

Send a Text Message. Please include your name and email so we can answer you! Please note, this does not subscribe you to our email list, it's just to answer if you have a questions for us.

Plateaued? Try These 5 Things Before You Clamp Down Harder Apr 06, 2026

Show notes

When the scale stops moving, the instinct is to restrict more, exercise harder, and white-knuckle your way through it. I get why this is a common reaction, but it's not what your body actually needs to break through.

In this episode, I explain why the answer to a plateau is almost never "do more and eat less." It's usually something far more holistic, and a whole lot kinder. So instead of clamping down harder, I’ll walk you through five overlooked strategies that get things moving again, without making you miserable in the process.

References

A four-month guided recalibration for your metabolism, nervous system, and daily rhythm

How to Get a Good Night’s Sleep with Janet Whalen

Join The Next Chapter, a five-month experience to make space for your health, work toward a meaningful goal, and have some fun along the way—get the details and enroll here by October 30th.

Not Sure Where to Start With the Podcast? I’ve Got You.

Send a Text Message. Please include your name and email so we can answer you! Please note, this does not subscribe you to our email list, it's just to answer if you have a questions for us.

GLP-1s at Every Age: What You Should Actually Be Watching For Mar 30, 2026

Show notes

When it comes to GLP-1 medications, your age and stage of life matter more than a lot of people realize. What works for your body at 25 won't work the same way at 45... and definitely not at 65.

Yet somehow, most people are still being treated with a one-size-fits-all approach. Same advice, same dosing strategy, same conversation — regardless of whether you're navigating PCOS in your twenties, perimenopause in your forties, or trying to protect your muscle mass in your sixties. And that disconnect might be exactly why things feel harder than they should.

Tune in to find out what I watch for at every stage of life, so you can make sure what you’re doing is helping, not holding you back.

References

Ask Me Anything Reddit Thread

Audio Stamps

00:30 – Dr. Rentea's personal updates: gym changes and YouTube channel.

03:30 – How Dr. Rentea thinks about GLP-1s differently at each life stage.

05:03 – Ages 20–34: Fertility surprises (for both partners), PCOS, and building your metabolic foundation early.

08:53 – Ages 35–59: Perimenopause, HRT bias against larger bodies, and why sleep and cortisol matter more than ever.

12:30 – Ages 60+: Why rapid weight loss can make you sicker, and why protein and resistance training become non-negotiable.

14:08 – Every age: Why muscle and bone health matter across all decades, and matching your strategy to your stage.

Join The Next Chapter, a five-month experience to make space for your health, work toward a meaningful goal, and have some fun along the way—get the details and enroll here by October 30th.

Not Sure Where to Start With the Podcast? I’ve Got You.

Send a Text Message. Please include your name and email so we can answer you! Please note, this does not subscribe you to our email list, it's just to answer if you have a questions for us.

How Your Nervous System Hijacks Your Eating (and How to Get It Back) with Jane Pilger Mar 23, 2026

Show notes

For 25 years, Jane Pilger couldn't figure out why she couldn't stop binge eating. It wasn't until she uncovered the one piece no one had ever explained to her that things finally started to change.

And it had nothing to do with willpower… or food. It was her nervous system.

In this episode, binge eating coach Jane Pilger returns to break down something that doesn't get nearly enough attention: how the state of your nervous system drives your eating behavior.

Jane shares her simple framework for mapping your nervous system, why you’re more likely to reach for food when you’re stressed, exhausted, or overwhelmed—and how to start responding differently in those moments.

References

Free nervous system mapping worksheet