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Elevate your

Fatty15 is a science-backed, award-winning, and pure C15:0 supplement that supports your long-term health and wellness.*

Buy Now
pill

3X

more cellular
benefits than
omega-3

Fatty15 contains pure C15:0, the first essential fatty acid to be discovered in over 90 years. With 36+ cellular benefits, these tiny pills pack a whole lot of goodness.

>99% pure C15:0 powder

Vegan-friendly

Patented & highly bioavailable

No oils
No fishy taste

36+ cellular benefits

Broader and safer clinically-relevant activities of C15:0 compared to omega-3. PLOS ONE (2022): e0268778.

Fatty15 works at the cellular level

As your nerdy overachiever, fatty15 protects cells in oh, so many ways. The result? We stay healthier, longer.*

Nerd out on all the C15:0 science at DiscoverC15.com

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Stronger cells

Fatty15 is a sturdy nutrient that reduces oxidative damage and acts like an armor for your cells, keeping them young and healthy.

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Cell types repaired

Fatty15 repairs a broad number of cells to support your whole body and mind health, especially as you age.

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More energized cells

Fatty15 effectively repairs mitochondrial function, which results in more energy for your cells (and you).

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Cellular benefits for long-term health

Fatty15 provides 36 clinically relevant benefits at the cellular level, effectively protecting your long-term health.

Your Longevity Nutrient

With more longevity-enhancing benefits than rapamycin, metformin and acarbose, fatty15 delays aging to help you live healthier, longer.

Read more

Peer-reviewed studies show that achieving healthy C15:0 levels with the pure C15:0 ingredient in fatty15 can support:*

Healthy liver function

Fatty15 is clinically proven to support healthy C15:0 levels and liver health, in part by activating PPARs and lowering lipid peroxidation.*

Strong & healthy red blood cells

Fatty15 is clinically proven to support healthy C15:0 levels and red blood cell health by strengthening RBCs against premature breakdown.*

Healthy cholesterol levels

The pure C15:0 ingredient in fatty15 is clinically proven to support healthy cholesterol levels, in part by activating AMPK.*

Healthy glucose handling

Fatty15 can support healthy glucose levels by activating AMPK and AKT, which improve insulin sensitivity and glucose handling by cells.*

What the experts are saying

Dr. Mark Hyman

“One of my favorite longevity-boosting supplements… fatty15 acts as an armor for your cells, strengthening cell membranes, repairing mitochondria, and reversing the hallmarks of aging...”

“One of my favorite longevity-boosting supplements… fatty15 acts as an armor for your cells, strengthening cell membranes, repairing mitochondria, and reversing the hallmarks of aging...”

Dr. Mark Hyman is the father of Functional Medicine and esteemed author of many health & wellness books, including his latest: Young Forever.

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Dr. Will Cole

“Wow, this is massive science. It's going to help everybody because it's so fundamental to human health."

“Wow, this is massive science. It's going to help everybody because it's so fundamental to human health."

Dr. Will Cole, Senior Functional Medicine clinic director in Pittsburgh, PA consults world wide in Autoimmune, Brain, Gut, Hormone, and Thyroid health.

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Thomas DeLauer

“If you use omega-3s, I encourage you to check out…fatty15. One of the most important things that it can do is…to repair actual damage to the cells.”

“If you use omega-3s, I encourage you to check out…fatty15. One of the most important things that it can do is…to repair actual damage to the cells.”

Thomas DeLauer, Nutrition and Business Performance Coach with 3.7 Million YouTube Subscribers.

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Nat Niddam

“This is part of that building block that you need for everything else to work properly… so it's important and foundational to health.”

“This is part of that building block that you need for everything else to work properly… so it's important and foundational to health.”

Nat Niddam, a Certified Holistic Nutritionist, graduating with First Class Honours from The Institute of Holistic Nutrition, an Epigenetic Coach and a member of the first graduating class of the Human Potential Training Institute.

View podcast

Hear from leaders in the health,
longevity & scientific communities

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of fatty15 customers report feeling or seeing benefits within 4 months*

  • Improved blood labs around metabolic, liver & heart health
  • Better energy
  • Deeper sleep
  • Improved joint comfort
  • Healthier hair

*Based on survey responses from 2,446 fatty15 customers.

Nerdy Science = Results You Can See & Feel

1 in 3

people are C15:0 deficient

When our cell membranes don’t have enough C15:0, this makes them fragile and leads to ferroptosis, accelerated aging, and affected metabolic, liver, and heart health.

It’s called “Cellular Fragility Syndrome” and it’s the first nutritional deficiency discovered in 75 years. Here’s the good news: Fatty15 can reverse it.*

Learn more

Evidence of accelerated aging as newly identified nutritional C15:0 deficiency syndrome. Metabolites 14 (2024):355.

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of customers report that fatty15 has become part of their daily health routine

“Today is my 70th birthday and I owe my feeling of health to adding fatty15 to my supplement. In a relatively short time I could see it working in my external body. Then, my lab numbers began improving.”

- T.C.

“My hair is growing like never before! I’ll take it forever.”

-L.I.

“Best supplement I have ever taken! Will not go without. Had my cholesterol checked at 6 months and was down 35 points. Heart doc very happy.”

-L.M.

“Fatty15 had made a huge difference in eliminating my joint pain. I never want to be without it now!”

-M.K.

“Consistent stable blood sugar being achieved upon adding fatty15 to my care plan.”

-D.H.

Join the community

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4446+

five-star reviews

Science-Backed & Award-Winning

2024 Fast Company

World Changing Ideas in Wellness

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2024 Fast Company

World Changing Ideas in Wellness

The groundbreaking discovery of fatty15 as a leading longevity nutrient was named FastCo 2024 World Changing Idea in Wellness for making a big impact on improving personal and global well-being.

2024 Mindful Awards

Best
Overall
Supplement

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2024 Mindful Awards

Best Overall Supplement

“In the global hunt for the fountain of youth, fatty15 may have just captured the prize…to enhance both human healthspans and lifespans.” - Travis Grant, Managing Director, Mindful Awards.

2024 NutraIngredients

Top Healthy Aging Ingredient

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2024 NutraIngredients

Top Healthy Aging Ingredient

Fatty15 is among NutraIngredients’ 2024 Top 3 Healthy Aging ingredients helping to meet the demand for anti-aging nutritional solutions.

What the scientific community is saying

“The company has not only taken on the mantle of bringing a completely novel nutrient to market, but a larger ambition of correcting a major nutrient deficiency.”

“Found in certain fish and plants, as well as milk and butter, [C15:0] is believed to improve immune function and strengthen heart health. Some experts hail the substance as even having anti-aging properties.”

Ariana Eunjung Cha

“What began as a passion for working with animals has resulted in an entrepreneurial journey of taking the science from the bay to the lab...and developing a product that people can take to improve health on a cellular level.”

Monica Haider

"When Dr. Stephanie Venn-Watson started studying dolphins at the US Navy's marine mammal program, she wasn't expecting to turn the food pyramid on its head."

Jessica Rendall

"As for the future, Venn-Watson and her team had discovered about 100 molecules naturally present in the serum of both dolphins and humans, that looked like they could protect against the onset of aging-related diseases, so it is very possible we will see more to come from her team. But presently, this discovery of a new [essential] fatty acid is incredibly remarkable."

Micki Wagner

"For decades there has been a war on fats such as butter, whole milk, and cheese. But for the first time in 90 years, a San Diego company made an amazing discovery of a new fat, present in butter, and one your body desperately needs."

Steve Atkinson

“Known as pentadecanoic acid, or C15:0, the dietary saturated fat found in milk, butter, fish, plants and other foods was shown in studies to demonstrate broad health benefits. It would join omega-3 and omega-6 as the only fatty acids considered by nutrition scientists as essential.”

Christopher Doering

“This discovery [by Seraphina Therapeutics] may elevate C15:0 to the ranks of now hallowed essential fatty acids omega-3 and omega-6 as well as usher in a new dialogue on changing the global guidelines for intake of dietary saturated fatty acids.”

Karen Raterman

What is C15:0?

C15:0 (pentadecanoic acid) is a healthy odd-chain saturated fatty acid. Fatty15’s co-founder, Dr. Steph Venn-Watson, discovered that C15:0 is not only a good fat, but that C15:0 meets the rare criteria of being the first essential fatty acid to be discovered since omega-3, which was over 90 years ago.

In extensive peer-reviewed studies, C15:0 has been shown to support metabolic, heart, liver and immune health, as well as naturally activate receptors in our bodies that deepen sleep, reduce anxiety, and improve joint comfort.

Essential fatty acids are nutrients that our bodies need to maintain baseline health but can't make. That means we must get these essential fats from our diet or supplements. Today, there are three known essential fatty acids: alpha-linolenic acid (an omega-3), linoleic acid (an omega-6), and now, C15:0. Because C15:0 has been shown to have 3x more cellular benefits than omega-3, C15:0 is emerging as the essential, essential fatty acid.*

Can’t I just get C15:0 from food?

Our primary food-based source of C15:0 is whole fat cow’s milk, which contains trace amounts of C15:0. Dairy fat, however, contains much higher levels of pro-inflammatory even-chain saturated fatty acids (C16:0), as well as a wallop of calories. Food-based C15:0 is also tied up in complex lipids called triacylglycerides that make C15:0 less bioavailable.  We developed fatty15 to help consumers get >99.5% pure C15:0 in a vegan-friendly, science-backed and readily bioavailable form. No cows or calories needed.

Can fatty15 replace my omega-3s?

You may be surprised to hear that the most recent studies show that taking omega-3 fish oil supplements does not significantly reduce the risk of developing heart disease, depression or mood disorders, frailty, autoimmune disease, dry eye disease or cognitive decline. This is likely because omega-3 fish oil supplements can be highly variable in omega-3 content and are particularly susceptible to lipid peroxidation, both of which can compromise the quality and effectiveness of omega-3 supplements. 

In contrast, fatty15 was developed by doctors to provide a >99.5% pure, science-backed, vegan-friendly, patented and award-winning C15:0 ingredient. Pure C15:0 is an essential fatty acid and a stable powder that is resistant to lipid peroxidation. Each and every batch of fatty15 is tested to guarantee its purity, helping to ensure that you are getting only the good, essential fat that you need. Further, fatty15 has been shown to have 3x more cellular benefits than even the purest, highest performing omega-3.

Given the above, most people can consider fatty15 as a replacement for their omega-3 supplements to support their general, long-term health. If you are taking omega-3s under the supervision of a physician, however, we recommend that you talk with your doctor before making any changes.

Learn more about fatty15 vs. omega-3s.

How does fatty15 protect my liver?

Fatty15 is an award-winning and science-backed C15:0 supplement that supports your long-term health, including your liver health, at the cellular level. Numerous studies have shown that both adults and children with higher C15:0 levels have better liver health. Beyond association, fatty15 has been shown to directly protect the liver in relevant models. Specifically, fatty15 is a PPAR-ɑ/δ agonist that promotes liver health by improving the resilience of cell membranes, calming immune responses, and slowing the production of unhealthy liver tissue.* Learn more about fatty15 and your liver health byclicking here.

How does fatty15 help rebalance metabolism?

Today, more than 50 peer-reviewed scientific studies have linked C15:0 (aka, pentadecanoic acid) to better metabolic, heart, immune and liver health. Our >99.5% pure, vegan-friendly C15:0 fatty acid in fatty15 rebalances our metabolism naturally by 1) activating PPAR-alpha and delta receptors, the master orchestrators of our metabolism, 2) activating AMPK pathways, which regulate glucose, 3) repairing mitochondria and enabling our cells to generate energy. Heck, that’s a bunch of much-needed benefits to help keep our metabolism balanced.*

Learn more about the deep science behind C15:0.

Can I test and measure my C15:0 levels?

Yes! We've teamed up with Genova Diagnostics to offer the Fatty15 C15:0 Test, which measures your C15:0 levels. This test helps you assess whether you have a C15:0 nutritional deficiency or at sub-optimal C15:0 levels. Learn more

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