In this episode, we explore the science of longevity with seasoned veterinary epidemiologist Dr. Stephanie Venn-Watson, CEO of Seraphina Therapeutics and founder of Fatty15. With a background spanning the World Health Organization and the U.S. Navy, Dr. Stephanie has dedicated her career to improving human and animal health.

She shares groundbreaking insights on pentadecanoic acid (C15)—a newly recognized essential fatty acid—and its role in supporting long-term wellness. We discuss the best dietary sources of C15, why it meets the seven criteria for a longevity nutrient, and how it impacts metabolic health, chronic disease, and overall aging. Plus, Dr. Stephanie reveals the fascinating research that started it all—studying dolphins!

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Topics Discussed: 

  • What is C15 and how does it support longevity and overall health?
  • Which foods are naturally high in pentadecanoic acid (C15)?
  • How does C15 compare to other fatty acids for metabolic and cellular health?
  • What role did dolphin research play in discovering the benefits of C15?
  • How can I incorporate C15 into my diet to improve long-term wellness?


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Sponsored By:

  • Be Well By Kelly Protein Powder & Essentials | Get $10 off your order with PODCAST10 at bewellbykelly.com.
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  • Fatty 15 | Fatty15 is on a mission to replenish your C15 levels and restore your long-term health. You can get an additional 15% off their 90-day subscription Starter Kit by going to fatty15.com/KELLY15 and using code KELLY15 at checkout.
  • OneSkin | Visit oneskin.co/BEWELL and use code BEWELL for 15% off your first purchase.


Timestamps: 

  • 00:00:00 - Introduction
  • 00:01:24 - Dr. Stephanie Background and Expertise
  • 00:05:03 - Longevity Science & the Power of C15
  • 00:08:14 - Top Foods Rich in C15
  • 00:09:37 - The Importance of Dairy
  • 00:11:21 - Criteria of a Proven Longevity Nutrient
  • 00:16:52 - Metabolic Health Benefits of Fatty15
  • 00:20:26 - Dolphin Research 
  • 00:25:01 - Best Ways to Absorb Nutrients
  • 00:31:17 - The Science-Backed Health Benefits of C15
  • 00:38:56 - How Diet and C15 Impact Chronic Disease Prevention
  • 00:41:01 - Ranking Fatty Acids
  • 00:45:39 - C15 Shelf Life, Sourcing, and Quality
  • 00:48:40 - How to Easily Incorporate C15 Into Your Diet
  • 00:54:52 - You Are Not Alone
  • 00:57:11 - Dr. Stephanie’s Book


Show Links:


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Mentioned in this episode:

Be Well By Kelly Protein Powder & Essentials | Get $10 off your order with PODCAST10 at bewellbykelly.com.

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