The Vitamin D Lie: Why Supplements Don’t Work Like Sunlight
Mark Bell's Power Project
Power Project Studios
4.7 • 1.7K Ratings
🗓️ 21 January 2026
⏱️ 11 minutes
🧾️ Download transcript
Summary
Full Episode Drops Monday, January 24th, 2026Sun avoidance has quietly become the default, and it’s doing real damage.In this clip, David Herrera breaks down why constant sunscreen use in low UV conditions can backfire, and why popping vitamin D pills isn’t the same as making vitamin D from sunlight.Follow David:@davidherrera1119Special perks for our listeners below!🥩 HIGH QUALITY PROTEIN! 🍖 ➢ https://goodlifeproteins.com/ Code POWER to save 20% off site wide, or code POWERPROJECT to save an additional 5% off your Build a Box Subscription!🩸 Get your BLOODWORK/TRT/PEPTIDES! 🩸 ➢ https://marekhealth.com and use code "POWERPROJECT" for 10% off Self-Service Labs and Guided Optimization®.🧠 Methylene Blue: Better Focus, Sleep and Mood 🧠 Use Code POWER10 for 10% off!➢https://troscriptions.com?utm_source=affiliate&ut-m_medium=podcast&ut-m_campaign=MarkBel-I_podcastBest 5 Finger Barefoot Shoes! 👟 ➢ https://Peluva.com/PowerProject Code POWERPROJECT15 to save 15% off Peluva Shoes!Self Explanatory 🍆 ➢ Enlarging Pumps (This really works): https://bit.ly/powerproject1Pumps explained: https://youtu.be/qPG9JXjlhpM?si=JZN09-FakTjoJuaW🚨 The Best Red Light Therapy Devices and Blue Blocking Glasses On The Market! 😎➢https://emr-tek.com/Use code: POWERPROJECT to save 20% off your order!👟 BEST LOOKING AND FUNCTIONING BAREFOOT SHOES 🦶➢https://vivobarefoot.com/powerproject🥶 The Best Cold Plunge Money Can Buy 🥶 ➢ https://thecoldplunge.com/ Code POWERPROJECT to save $150!!➢ https://withinyoubrand.com/ Code POWERPROJECT to save 15% off supplements!➢ https://markbellslingshot.com/ Code POWERPROJECT to save 15% off all gear and apparel!Follow Mark Bell's Power Project Podcast➢ https://www.PowerProject.live➢ https://lnk.to/PowerProjectPodcast➢ Insta: https://www.instagram.com/markbellspowerproject➢ YouTube: https://www.youtube.com/markbellspowerproject
Transcript
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| 0:00.0 | It's like shocking to me how sun avoidance has permeated people so deeply. Like, you know, even my girlfriend and her friends, like she goes out, when she goes outside in the winter, low UV here in Sacramento, UV is at like two or three. And I see her putting on sunscreen. I'm like, whoa, whoa, whoa, whoa, whoa. Our UV isn't like at five or six right now? It's at two or three. She's like, well, |
| 0:22.4 | you always put out sunscreen when you go out. So I'm like, whoa, whoa, whoa. And then I asked her, |
| 0:26.2 | how about your friends? They do this shit too? Or she's like, yeah. And it's like, barely any UV outside and you're still using sunscreen yeah yeah so now you're going to make yourself |
| 0:34.2 | potentially autoimmune, |
| 0:42.4 | potentially, well, for sure UV, or not UV, vitamin D deficient. |
| 0:42.8 | Yep. |
| 0:45.0 | Sex hormone deficient, right? Because those are interlinked into that, right? |
| 0:47.8 | You need UV to make vitamin D. |
| 0:50.5 | Yeah. |
| 0:50.7 | You need UV to make sex hormones. |
| 0:53.5 | You need UV to make neurotransmitters, right? |
| 0:56.0 | So you're going to dispose yourself or predispose yourself |
| 1:00.0 | to all of the conditions associated with that. |
| 1:04.0 | We know that low vitamin D predisposes you to autoimmune conditions |
| 1:08.0 | by a large margin. |
| 1:09.0 | If you're female, Hashimoto's is probably one of the most common autoimmune conditions |
| 1:14.3 | that a female can get. |
| 1:15.7 | And it goes sky high when you compare it to vitamin D levels of people. |
| 1:20.6 | So then people just start taking vitamin D pills. |
| 1:22.6 | Yeah. |
| 1:22.9 | But it doesn't work that way because the vitamin D receptor is intertwined at the mitochondrial membrane. |
| 1:29.5 | Mm-hmm. |
... |
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