Nutrient Database

Astaxanthin

antioxidant

Approved

General information about nutrients. No diagnosis, no medical advice. If you take medication, are pregnant or have a medical condition, talk to your doctor before taking supplements.

With fatty mealFasting safe

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Overview

Carotenoid from microalgae. Crosses the blood-brain barrier.

Top 5 food sources

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Expert opinions

Bryan Johnson Blueprint

Johnson takes 12mg astaxanthin daily from Haematococcus pluvialis microalgae, one of the highest sustained doses in his stack. Taken with the evening fat-containing meal since bioavailability rises 3 to 4× with dietary lipids. Blueprint tracks skin elasticity, MDA (oxidative-stress marker), and retinal imaging quarterly.

Recommended dose: 12 mg

Source: Blueprint Protocol

Current Research

Astaxanthin is a fat-soluble carotenoid, so absorption rises 3 to 4× with a lipid-containing meal. Supercritical-CO2-extracted natural astaxanthin (3-S, 3'-S isomer) is preferred over synthetic forms.

Recommended dose: 4–12 mg

Source: Current Research

Expert profiles summarise publicly available statements. The named people do not cooperate with Stackwell and have not authorised these summaries. Not medical advice.

Expert consensus: Moderate

Take with fat for absorption.