In this episode, I welcome back Dr. Jim Stephenson Jr., a dedicated citizen researcher who has spent years investigating the complexities of vitamin D3 supplementation. After a personal journey spurred by his wife's health challenges, Jim discovered that the common advice to supplement with D3, K2, and magnesium didn’t yield the results they hoped for. Today, we’ll explore his groundbreaking insights into how D3 functions in the body, its various metabolites, and the real implications of sun exposure. Join us as we tackle lingering questions and examine the role of vitamin D3 in health and disease, along with the surprising risks of supplementation.

Timestamps: 

• 00:00:00 - Introduction  

  
  



• 00:05:02 - Jim’s Background  

  
  



• 00:07:01 - Vitamin D Deficiency  

  
  



• 00:09:12 - Phlebotomy and Blood Testing  

  
  



• 00:10:30 - Types of Vitamin D Testing  

  
  



• 00:12:40 - Jim’s Molecular Research  

  
  



• 00:18:37 - Anti-Cancer Pathway  

  
  



• 00:20:16 - UVA and Cancer Prevention  

  
  



• 00:21:20 - Sunscreen and Showering After Sun Exposure  

  
  



• 00:22:29 - Tracking Your Sun Exposure  

  
  



• 00:28:01 - D3 Variation  

  
  



• 00:29:21 - D3 Levels and Disease  

  
  



• 00:31:06 - You Can’t Supplement the Sun  

  
  



• 00:33:27 - Vitamin K2, Magnesium, and D3  

  
  



• 00:36:53 - Pregnancy and D3  

  
  



• 00:38:13 - Vitamin D3 Drops for Babies  

  
  



• 00:44:24 - Vitamin Deficiencies and Disease Correlation  

  
  



• 00:46:24 - Vitamin D3 Supplement Side Effects  

  
  



• 00:50:33 - Benefits of Sunlight  

  
  



• 00:51:55 - Melatonin and Vitamin D  

  
  



• 00:53:51 - Sun Lamps in Winter  

  
  



• 00:55:41 - Health Risks of Supplementation  

  
  



• 00:57:57 - Pathogens and Vitamin D  

  
  



• 01:01:03 - Vitamin D and Your Gut  

  
  



• 01:04:27 - Vitamin D and Sulfate

  
  

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Show Links

⁠Previous Interview With Jim Stephenson Jr ⁠

Check Out Jim: 

• Substack

  
  



• Facebook

  
  

This video is not medical advice & as a supporter to you and your health journey - I encourage you to monitor your labs and work with a professional!

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