10/27/2025
Astaxanthin: The Power Behind Salmon’s Vibrant Color
Since moving to Oregon, my family and I have joined a local salmon share, which means each season we get to enjoy fresh, wild-caught Alaskan salmon. Every time I prepare it, I’m struck by the deep reddish orange of the flesh. That stunning color comes from astaxanthin, a powerful antioxidant found in microalgae and the marine life that consume it.
Astaxanthin isn’t just beautiful, it’s one of nature’s strongest defenders against oxidative stress. It’s significantly more potent than vitamins C, E, or beta carotene, and its unique structure allows it to span the cell membrane, shielding both the inner and outer layers from free radical damage. It even crosses the blood–brain barrier to help protect brain cells and support cognitive health.
I’ve used astaxanthin for years in my veterinary practice and include it in several of my ThorneVet formulas that focus on healthy aging, cognition, and kidney support, like ThorneVet Longevity Complex, ThorneVet Canine Cognitive Support, ThorneVet Kidney Support Formula and ThorneVet Feline Basic Nutrients. I’ve also worked with microalgae based supplements such as BioAge BioPreparation F3 and BioSuperfood F3, which offer another way to bring this potent nutrient into the body.
Oxidative stress happens when the body’s antioxidant defenses are overwhelmed by free radicals, the natural byproducts of energy metabolism and inflammation. Over time, that imbalance accelerates aging and contributes to chronic disease. Nutrients like astaxanthin help restore balance, protect tissues, and calm inflammation throughout the body.
This time of year, I love watching the salmon run on the Salmon River Trail and right on our property, those bright flashes of red are a living reminder of the power of this compound in nature.
So next time you enjoy wild salmon, take a moment to appreciate that vibrant color. It’s more than delicious, it’s nature’s medicine. Astaxanthin is one of my favorite tools for supporting vitality and healthy aging from the inside out.