820: The Gut-Skin Connection: Fixing Permeability, Fasting Safely & Hacking Your Microbiome
Beauty Bytes with Dr. Kay: Secrets of a Plastic Surgeon™
Kay Durairaj, MD, FACS @beautybydrkay
4.9 • 608 Ratings
🗓️ 8 April 2026
⏱️ 64 minutes
🧾️ Download transcript
Summary
Are your daily probiotics actually healing your gut, or are they just passing straight through your system? In this fascinating episode of Beauty Bytes, I am joined by clinical nutritionist Oscar Coetzee to discuss the massive paradigm shift happening in longevity medicine: cultivating powerful "Keystone" bacteria.
Oscar explains why standard probiotics are like buying a bouquet of "cut flowers" that inevitably wilt, and introduces the revolutionary science behind anaerobic strains that actually plant themselves into your gut lining. We dive into the incredible benefits of Akkermansia, a bacteria that triggers your body's natural GLP-1 production, and uncover a specific microbe that produces endogenous salicylic acid to clear acne and rosacea from the inside out.
If you want to understand the true gut-skin connection, this is a must-listen.
Transcript
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| 0:00.0 | Well, hello, hello, guys. You're listening to Beauty Bites with Dr. K, Secrets of a Plastic Surgeon. |
| 0:20.8 | And today on the podcast, |
| 0:22.5 | I'm joined by Oscar Coatsy. He's a nutritionist and educator with 20 years of experience |
| 0:28.1 | in functional type of evidence-based clinical nutrition. So he's peer-reviewed author. He's an |
| 0:34.0 | international speaker. He's taught functional medicine for more than 15 years. |
| 0:38.5 | And he also has a doctorate in clinical nutrition. He's a full professor at Notre Dame and |
| 0:43.8 | Maryland, Maryland University. And he's vice president of education at Designs for Health. He's |
| 0:49.3 | also adjunct professor at Georgetown med school. My three kids went to Georgetown. Yay. And clinical director |
| 0:57.3 | of nutrition department at natural health care center. So today, I thought it would be great to |
| 1:03.1 | engage Oscars, all of his expertise to talk about GI Health, metabolomics, genomics, what's going on in the nutritional world that's |
| 1:13.3 | longevity-related. Welcome, Oscar. |
| 1:16.4 | Well, thank you for having me, Dr. Kay. Yeah, I'll actually be lecturing at Georgetown tomorrow, |
| 1:22.1 | and on Thursday, there's like an elective that a lot of the residents, you know, go to to learn a little bit more |
| 1:29.1 | about functional medicine. So we're trying to open up that gate under Dr. Hakima Armory, |
| 1:33.4 | who's leading that whole functional integrative development at Georgetown. |
| 1:38.8 | That's so good. You've taught functional medicine for years. What's kind of the biggest |
| 1:43.3 | mistake you see clinicians |
| 1:44.5 | or patients making when they're trying to optimize their health and aging? Is it too much testing, |
| 1:51.0 | going overboard? I think everybody is trying to find answers, right? So I think sometimes the deep dive |
| 1:57.4 | on too much testing might be an issue. But I'm always the person that believes the more information you have, the better, right? |
| 2:04.2 | If you're trying to investigate anything from rejuvenative medicine |
| 2:08.6 | or anything related to anti-aging or longevity medicine, I feel more is better than less. |
... |
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