Supplement · Brain health technique
Astaxanthin
Evidence grade: Experimental
A red-orange carotenoid antioxidant found in microalgae and seafood (salmon, krill). Protects lipids and cell membranes from oxidative damage and crosses the blood–brain barrier.
- Practice
- Supplement
- Principle
- Nourishment
- Tactic
- Neuroprotective & Antioxidant Support
- Evidence grade
- Experimental
- Strength of evidence
- Low
How to practice Astaxanthin
Typical dose 4–12 mg/day with meals containing fat. Look for natural (Haematococcus pluvialis) sources rather than synthetic. Benefits may take 4–8 weeks. Useful adjunct for heavy exercisers or high oxidative load but not essential for the average healthy adult.
The evidence behind Astaxanthin
Animal and small human trials show astaxanthin reduces lipid peroxidation and inflammation and may improve visual and cognitive performance under stress. Evidence for long-term neuroprotection remains early-stage. It’s stronger as a systemic antioxidant than for specific brain endpoints. Well tolerated, though high doses can discolor skin slightly.
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