• 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.

    Brain

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

    Immunity

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

    Red Blood Cells

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

    Liver

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

    Metabolism

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

    • 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.

      check_circle Backed by 100+ peer-reviewed studies


      check_circle Pure & patented C15:0 ingredient


      check_circle Highest-standard manufacturing

      check_circle Every batch independently tested

      check_circle Generally Recognized as Safe (GRAS)

      check_circle Core claims backed by claims backed by Competent & Reliable Scientific Evidence (CARSE)

      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:

      check_circle Better sleep

      check_circle Improved energy

      check_circle Healthier mood

      check_circle Overall improved health

      Buy now

      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

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

        Here’s how fatty15 supports healthy aging:

        Real People, Real Results

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          Here’s how fatty15 supports healthy aging:

           

          “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 NYTBest 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

          “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

          “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

          We're aging faster than we should.But this is fixable.

          Our primary dietary source of C15:0, by far, is dairy fat. Fordecades, society has shifted away from whole dairy fats,resulting in an invisible side effect: drastically lowering C15:0 from our modern diet.
          The result? Studies support that low C15:O levels can makeour cells more fragile and may accelerate aging.

          Fatty15 isn't just a supplement.
          It is a restoration.

          By delivering pure, bioavailable C15:0, fatty 15 is clinically proven to raise C15:0 levels. By doing so, fatty15 can strengthen cell membranes to help support healthy aging for you and your family.*

          FAQs

          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 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.

          Can't I just get C15:0 from food?

          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.

          How does fatty15 compare to omega-3?

          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.

          How does fatty15 protect my liver?

          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.

          How does fatty15 support metabolic health?

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