How Krill Oil May Support Healthy Aging: A Review of the Science
This narrative review looks at krill oil, a marine-derived nutrient source known for its unusual structure: a large portion of its omega-3 fatty acids are attached to phospholipids rather than triglycerides, which researchers associate with better absorption and tissue uptake even at lower doses.
The review highlights that krill oil sourced from Antarctic krill tends to have low levels of environmental contaminants like heavy metals, due to originating from a relatively untouched marine ecosystem. It also contains a mix of nutrients beyond omega-3s, including EPA, DHA, choline, and the antioxidant astaxanthin.
The authors organize their discussion around the concept of ‘intrinsic capacity’—a framework used in aging research that covers movement, energy/vitality, senses, thinking, and emotional well-being. They examine how krill oil’s nutrient combination might interact with inflammation, oxidative stress, cell membranes, and cell signaling, all processes relevant to aging biology.
What this means for you
For anyone interested in nutrition strategies related to aging, this review suggests that krill oil’s phospholipid-bound omega-3s, favorable purity profile, and added nutrients like choline and astaxanthin make it a distinct option worth understanding—though as a narrative review, it summarizes existing research rather than presenting new experimental proof.
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Start the ALP ProtocolThis summary is for educational purposes only and is not medical advice. Always talk to your healthcare provider before making changes to your supplement routine.