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Healthy aging starts with stronger cells

Fatty15 delivers an award-winning, science-backed and patented C15:0 nutrient that strengthens cells to support healthy aging for all.*

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HSA/FSA Eligible

CNBC Changemaker Award

Newsweek Readers’ Choice Award

World Changing Ideas

#1 Fastest Growing Supplement

Global Excellence Awards

Developed by doctors,

funded by the Navy.

Fatty15 was developed to bring a pure, patented and bioavailable C15:0 nutrient 
to the world that supports healthy aging 
at all stages of life.*

Age well, starting now

We’re Talking Whole Body Health.

How fatty15’s cellular benefits translate to whole-body wins.

We’re Talking Whole Body Health.

Brain

Fatty 15 targets key pathways that promote healthy dopamine & endocannabinoid levels to support your cognitive health, along with deeper sleep.*

Read the studies

Metabolism

Fatty15 supports metabolic health by activating AMPK and AKT, as well as repairing mitochondria, to promote healthy glucose control and improved overall energy.*

Read the studies

Red Blood Cells

Fatty15 strengthens red blood cell membranes by up to 80% to protect them against premature breakdown.*

Read the studies

Liver

Fatty 15 activates PPARα and PPARδ to support healthy liver support.*

Read the studies

Immunity

Fatty15 inhibits 18+ proinflammatory cytokines to support healthy immune function.*

Read the studies

Healthy aging for all

Welcome to the family of fatty15 C15:0 supplements, 
for the grown up and the growing up.

Most Popular

Fatty15 Original 
Capsules

New

Fatty15 Gummies 
for Adults

Coming Soon

Fatty15 Gummies for Kids

Fatty15 Gummies
for Kids

A kid-friendly start to lifelong cellular health — supporting growing bodies with C15:0, a core nutrient their cells can use every day.

Bringing C15:0 to support kids’ healthy growth & development in a yummy mixed berry (and sugar free) gummy.*

30-Day Supply
Healthcare Providers

Fatty15 Advanced Formula

Advanced Formula
Extra Strength

Exclusively for Healthcare Practitioners

AFEX delivers a higher dose of pure, bioavailable, science-backed C15:0 to support healthcare practitioners in addressing their patients’ specific nutritional needs.*

30-Day Supply
10+

Years of Research

A decade of collaboration with the U.S. Navy with groundbreaking results.

30+

Awards

Widespread recognition from leading authorities in health and wellness.

100+

Peer-Reviewed Studies

studies in top-tier journals reinforce scientific credibility.

60+

Licensed Patents

Exclusive patents across multiple key healthcare applications.

A trusted brand, backed by third-party validation

Here at fatty15, we are dedicated to the 
highest standards in science, supplement quality and safety.

  • Backed by 100+ peer-reviewed studies

  • Pure & patented C15:0 ingredient
Highest-
  • Highest-standard manufacturing
  • Every batch independently tested
  • Generally Recognized as Safe (GRAS
  • Claims backed by Competent & Reliable Scientific Evidence (CARSE)
Logos

Science-backed.

Customer loved.

100,000+ active fatty15 subscribers 
6,000+ 5 star reviews

70% of fatty15 customers report seeing or feeling benefits within 16 weeks, including:*

  • Better sleep
  • Improved energy
  • Healthier mood
  • Overall improved health

Fatty15 delivers a foundational nutrient

C15:0 is the first essential fatty acid to emerge in over 90 years. By delivering a pure and bioavailable C15:0 nutrient, fatty15 supports the strength and stability of our cells at every age and every stage of life.*

GROW: In childhood, higher C15:0 levels are associated with healthier body growth and cognitive development.*

SLOW: In adulthood, fatty15 slows
cellular aging and supports better
long-term health.*

REVERSE: As we get older, fatty15 is an emerging geroprotector that reverses cellular aging*

Learn more about how C15:0 meets the criteria of a foundational nutrient.

Fatty15 can slow (and yes, even reverse) cellular aging.

Here’s how fatty15 supports healthy aging:*

1

Strengthens cell membranes*

 
 
2

Targets core longevity switches*

 
 
3

Drives measurable whole-body improvements*

 
 
4

Reverses key hallmarks of aging*

 
 
5

Slows cellular aging*

 
 
6

Protects long-term health*

 
 
1

Strengthens cell membranes*

2

Targets core longevity switches*

3

Drives measurable whole-body improvements*

4

Reverses key hallmarks of aging*

5

Slows cellular aging*

6

Protects long-term health*

Healthy aging

breakthrough, discovered by helping dolphins

Did you know that 1 in 3 older dolphins develop the same aging-associated conditions that we do?

While caring for older Navy dolphins, doctors discovered that higher dietary and circulating levels of C15:0 predicted the healthiest aging dolphins.* Fast forward 10 years and 100+ studies, and we know that C15:0 helps us human age healthier, too.

☨ Some of the users featured above were compensated for sharing their experience with fatty15.

Health leaders recommend fatty15.

Dr. Mark Hyman
Dr. Will Cole
Thomas DeLauer
Nat Niddam
It’s been part of my daily routine for the last three or four years, I take it everyday, non-negotiable. It’s easy to take. Boost your healthy aging routine with fatty15.”

Dr. Mark Hyman, Functional Medicine Physician and NYT Best Selling Author

Dr. Mark Hyman, Functional Medicine Physician and NYT Best Selling Author
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

Dr. Will Cole, Senior Functional Medicine Clinic Director
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, Celebrity Fitness and Nutrition Expert

Thomas DeLauer, Celebrity Fitness and Nutrition Expert
This is part of that building block that you need for everything else to work properly… it’s important and foundational to health.”

Nat Niddam, Holistic Nutritionist and Longevity Educator

Nat Niddam, Holistic Nutritionist and Longevity Educator

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 emerge since omega-3, which was over 90 years ago.

100+ peer-reviewed studies have been published relevant to C15:0’s health benefits, including how C15:0 has 36+ cellular activities that support metabolic, heart, liver, cognitive, red blood cell and immune health.

Essential fatty acids are nutrients that our bodies need to maintain baseline health, but can’t make enough on their own. That means we must get these essential fats from our diet or supplements. Because C15:0 has been shown to have a wide range of cellular benefits, C15:0 is emerging as the essential, essential fatty acid.*

While C15:0 can be found in some foods, it's mixed with much higher levels of pro-inflammatory fatty acids. Fatty15 provides a pure, patented, science-backed, award-winning and bioavailable C15:0 ingredient.

Fatty15 (C15:0) is an odd-chain saturated fatty acid, while omega-3s are polyunsaturated fatty acids. While both are beneficial fats that support healthy immune responses, they also have very different roles. For example, fatty15 is a sturdy fat that strengthens our cell membranes and protects them against age-driving lipid peroxidation. In contrast, omega-3s are less stable fats that make our cell membranes flexible but more susceptible to oxidation, especially as we age. The bottom line: Our bodies use both C15:0 and omega-3s to stay healthy, and they can and should compliment each other. The upsides of fatty15 with pure C15:0? Tiny pills with no smell, no taste, and no burps. Better yet, when tested head-to-head against pure EPA, fatty15 had 3x more cellular benefits relevant to our immune, metabolic, heart, and liver health. We recommend working with your healthcare provider to determine what supplement stack is best for you.

Fatty15 activates PPARs, which support healthy liver function. Cell-based and in vivo studies have shown that the pure C15:0 ingredient in fatty15 effectively protects liver cells against lipid peroxidation and pro-inflammatory cytokines. People with higher C15:0 levels have healthier liver function.*

C15:0 activates metabolic pathways that support healthy glucose and lipid metabolism, helping maintain balanced energy levels.*

Yes! Your doctor can order a fatty acid panel, which includes C15:0. Additionally, we partnered with Genova Diagnostics to offer an at-home C15:0 test. These tests measure your C15:0 levels, which allows you to fix nutritional C15:0 deficiencies, optimize the strength of your cells and slow the aging of your cells.

FAQ illustration