You Asked, We Answered: What Makes Fatty15 So Different?

Aging can sneak up on you. It’s a gradual, cellular process that begins in early adulthood and progresses as we get older s. The result? Our energy starts to drag, recovery rates slow, and our bodies become less resilient. 

Healthy aging starts at the cellular level. When our cells thrive, so do we. This is why reversing cellular aging is a key to longevity and a happier, healthier you. 

This understanding sits at the heart of fatty15, the 2025 Inc. 5000 #1 Fastest-Growing Supplement company in America. 

Discovered by veterinary epidemiologist, Dr. Stephanie Venn-Watson, while caring for aging Navy dolphins. Her team noticed that some dolphins aged more slowly and stayed healthier longer than others. They found that higher dietary and circulating levels of C15:0, a hidden nutrient, consistently predicted better health and resilience in aging dolphins. With funding from the Office of Naval Research, a pure, patented, and bioavailable form of C15:0 was created. It is emerging as the first essential fatty acid to be discovered in over 90 years. 

Our wellness editors took a closer look at fatty15, an innovative approach to long-term resilience, to explore the buzz and answer the questions people are asking.

1. Just what is fatty15?

Fatty15 is a breakthrough C15:0 fatty acid supplement that addresses aging at the root. It contains 99% pure, vegan-friendly, plant-based C15:0 (pentadecanoic acid) powder. 

One capsule a day helps strengthen cell membranes against age-driving oxidation and improve mitochondrial function, which keeps our body’s energy-producers going.

In fact, fatty15 has36+ cellular benefits that support metabolic, cognitive, liver, immune, and red blood cell health.* The list goes on…

2. How does C15:0 play a foundational role in cellular health?

C15:0 is an emerging essential fatty acid that the body relies on to support cellular structure. It’s naturally present in dairy products, some plants, and some types of fish. Research links adequate C15:0 levels to stronger cell membranes and reduced lipid peroxidation, a process associated with cellular stress and breakdown.

We now know how C15:0 actively repairs and revitalizes our long-term health at the cellular level, by:

• Strengthening our cells (and us) against age-related breakdown
• Improving mitochondrial function, which keeps our body’s energy-producers going
• Naturally activating receptors that regulate our metabolism, immunity, mood, appetite, and sleep†

3. Can’t we derive C15:0 from our diet/food?

In theory, yes. In reality? It’s tricky.

C15:0 appears in small amounts in whole-fat dairy, but it has to compete with much higher levels of proinflammatory fats present in dairy products.

So before you go wild on the butter, loading up on dairy increases your total fat intake, sugars, and lactose. Not optimal for most people.

Fatty15 makes it easy for people to meet their daily essential C15:0 needs.* It delivers ready-to-absorb, pure C15:0 in a non-dairy, lactose-free form, absent of proinflammatory fats,, and just one calorie per serving, so you get the good fat, cleanly and consistently.*

4. But what about omega-3 supplements?

Many people are familiar with omega-3, but C15:0 belongs to an entirely different category of fatty acids. Both support healthy immune responses. Our bodies use both to stay healthy.

Omega-3s are less stable fats that make our cell membranes flexible but also more susceptible to oxidation, especially as we age. Fatty15 strengthens our cell membranes and protects them against age-driving lipid peroxidation. 

Fatty15 has 36+ cellular benefits, including support for immune balance and healthy cell regulation. It comes in tiny capsules with no smell, no taste, and no fishy burps, while providing 3x more cellular benefits than pure EPA, an omega-3 fatty acid. 

5. Can fatty15 work in the long term?

70% of customers report feeling near-term benefits within 16 weeks**, including deeper sleep, calmer mood, better energy, and improved overall health*. 

Reported long-term benefits include metabolic, heart, immune, red blood cell, and liver support.* Whether benefits accrue early or later, consistent cellular support aligns with fatty15’s approach to healthy aging as a long-term investment.

Each capsule delivers 100% pure, free fatty acid C15:0 selected for stability, purity, and ease of daily use. Many customers begin with a 90-day subscription, allowing time for cellular systems to respond and stabilize.

Final thoughts

100,000+ subscribers have made fatty15 part of their everyday wellness routine, and for good reason. It supports cellular health where aging begins. Strengthening and energizing your cells helps you hold on to what the aging process tries to take away. Stay you longer with fatty15.

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

**Based on a survey with 6,243 fatty15 customers. 

†These claims are confirmed by third-party experts as backed by Competent and Reliable Scientific Evidence (CARSE).