C15: The Missing Essential Fat That Drives LONGEVITY, Brain, Gut & Mitochondrial Health

C15 (pentadecanoic acid) AND odd chain fats are THE missing essential fatty acids with powerful implications for longevity, metabolic health, brain function, gut integrity, and mitochondrial performance. In this episode, Dr Cywes @carbaddictiondoc breaks down the science behind odd-chain fatty acids—a largely overlooked class of fats that behave very differently from conventional even-chain fats.
Why C15:0 is considered an essential fatty acid
How odd-chain fatty acids differ from omega-3s, omega-6s, and PUFAs
The role of C15 + odd-chain FAs in mitochondrial resilience and cellular aging
Connection between C15 level, cardiometabolic health, insulin sensitivity, inflammation
How modern low-fat, high-sugar diets may have unintentionally driven C15 deficiency. Dietary sources of C15 and why many people struggle to obtain adequate amounts. How odd-chain fats interact with gut health, brain health, and immune regulation
This discussion challenges decades of fat-phobia and reframes dietary fat through an evolutionary, metabolic, and mitochondrial lens—with practical insights for optimizing human health and longevity.
How to build a healthy-fat diet using real foods, not industrial products.
For decades, butter, meat, eggs, and dairy were vilified — while refined carbohydrates and industrial oils were promoted as “heart-healthy.” The result has been rising rates of obesity, diabetes, atherosclerosis, fatty liver disease, and cognitive decline.
Real science is restored. The guidelines now follow but still lag behind physiology.
This video explains what healthy fats actually are, how to use them confidently, and why questioning processed fats is not radical — it’s rational
As a physician practicing from a Carbaddiction carnivore and metabolic-health perspective, I explain what these changes really mean for:
Brain health
Insulin resistance
Obesity
Type 2 diabetes
Cognitive decline
Long-term inflammation
We also discuss why animal-based nutrition is no longer “fringe”, how protein is being re-centered as a foundational macronutrient, and why processed carbohydrates are now the primary dietary villain.
If you’ve been confused by conflicting nutrition advice—or felt gaslit for prioritizing meat, fat, and protein—this video explains why the science is finally catching up.
This is the biggest nutrition reversal in modern history.
#HealthyFats
#DietaryGuidelines
#C15
#OddChainFattyAcids

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**DISCLAIMER: Any information on diseases and treatments available at this channel is intended for general guidance only and must never be considered a substitute for advice provided by a doctor or other qualified healthcare professional. Always seek the advice of your physician or qualified healthcare professional regarding your medical conditions. This site and these videos exist to provide information and support about nutritional health and do not provide medical advice and should not be thought to provide medical advice. We can only give medical advice if you establish yourself as a registered patient and consult with us in our medical practice. We always recommend working with a team of knowledgeable and experienced practitioners. Do not self-diagnose. Always seek medical guidance when you have a medical condition.
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