
Vitamin D3
Mentioned 3 times across 2 shows · first heard Sep 2025 on Proven Podcast.
The general take
Rhonda Patrick sees vitamin D3 supplementation as a solid approach, taking 5,000 IUs daily herself and noting it's an effective way to correct deficiencies that diet alone won't fix. She emphasizes that while sunlight matters for vitamin D production, it does more than just that, so supplementing is practical even if you get sun exposure.
About
HIGH POTENCY/SUNSHINE VITAMIN: Highly-absorbable liquid softgel form of vitamin D3 · VITAMIN D: Supports healthy immune system function and is essential for achieving and maintaining optimal bone mineral density* · CERTIFICATIONS/CLASSIFICATIONS: Corn Free, Dairy Free, Egg Free, Halal, Kosher Contains Gelatin, Made without Gluten, Non-GMO, Soy Free · GMP Quality Assured: A-rated, third-party certification means that every aspect of the NOW manufacturing process has been examined. Our in-house laboratories are ISO/IEC accredited for laboratory testing including for stability, potency and product formulation.
Who said what

Kyle Gillett👍 Recommends
…discussing vitamin D supplementation for testosterone optimization
“Let's briefly mention vitamin D, which is also a hormone. It's actually a sterol hormone. And if you have deficient vitamin D and you replace it, then you will optimize your testosterone. Vitamin D3, I'm guessing you're talking about vitamin D3 specifically when you say vitamin D.”
Huberman Lab — Essentials: Tools for Hormone Optimization in Males | Dr. Kyle Gillettat 20:10
Rhonda Patrick👍 Recommends
…discussing vitamin d3 supplementation for adequate vitamin d levels
“So vitamin D3 is a good way to supplement with it. Their vitamin D2 would be a plant source. You often find it fortified in like foods like milk. Yeah, vitamin D is naturally to some degree in fatty fish, but you're not going to correct a deficiency with eating fish for your vitamin D.”
Huberman Lab — Essentials: Micronutrients for Health & Longevity | Dr. Rhonda Patrickat 19:45- OA
Oliver Anwar👍 Recommends
…foundational supplement stack for entrepreneurs and busy executives
“So number one is vitamin D3. So what this is going to do is help with testosterone support and immunity. That's great. We've got B12 as well. So a lot of entrepreneurs we found D3 and B12, they're very deficient in. So the B12 is going to help with brain health, also energy production.”
Proven Podcast — How Peak Performance Drives Business Growth - Oliver Anwarat 22:44
Listener reviews
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