Which Form?
Astaxanthin
Strong
consensus
Available Forms
- Natural astaxanthin derived from Haematococcus pluvialis microalgae is the most common supplemental form
- Synthetic astaxanthin offers advantages in scalability, purity, consistency, and potentially higher bioavailability (Hyman, citing Watumull)
- Natural food sources include salmon (especially wild-caught), salmon roe, krill oil, shrimp, and lobster — the red-pink pigment in these foods comes from astaxanthin
Dosage & Timing
Dosage
- 4-12mg daily is the commonly studied range
- Johnson includes it in his Blueprint stack (specific dose not disclosed in videos)
- The ITP mouse studies used doses that would translate to approximately 4-12mg/day in humans
- Hyman's coverage suggests starting at the lower end and adjusting based on individual response
Timing
- Take with a fat-containing meal to improve absorption, as astaxanthin is a fat-soluble carotenoid
- No specific time-of-day requirement
- Consistency matters more than timing
Expert Positions
What Each Expert Says
Huberman discusses astaxanthin across three eye health episodes, recommending it as a supplement that may support macular health and ocular blood flow. In his vision science episode, he reviews evidence for lutein and astaxanthin in supporting macular health alongside cardiovascular fitness for eye blood flow. In an AMA on eye health, he discusses the potential benefits of lutein, zeaxanthin, and astaxanthin for age-related macular degeneration, noting that dietary sources are preferred. His Essentials episode reiterates that astaxanthin may support ocular blood flow, while lutein may primarily benefit those with moderate-to-severe macular degeneration.
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