Safety Profile
Overall safety rating: Generally Safe
Astaxanthin (Eye Health) Side Effects & Safety
This content is for informational purposes only and does not constitute medical advice. Consult your healthcare provider before starting any supplement. Full disclaimer
Potential Side Effects
- Mild reddish-orange discoloration of stool (harmless)
- Possible skin color change at very high doses
- Rare gastrointestinal discomfort
Drug & Supplement Interactions
- May enhance the effects of blood pressure-lowering medications
- Potential additive effect with anticoagulants due to mild antiplatelet activity
- May interact with CYP3A4-metabolized drugs at high doses
Maximum Dose
Do not exceed: 24 mg/day used in research without adverse effects; typical ceiling is 12 mg/day
References
- Nagaki Y, Hayasaka S, Yamada T, et al. (2002). Effects of astaxanthin on accommodation, critical flicker fusion, and pattern visual evoked potential in visual display terminal workers. Journal of Traditional Medicines.
- Saito M, Yoshida K, Saito W, et al. (2012). Astaxanthin increases choroidal blood flow velocity. Graefe's Archive for Clinical and Experimental Ophthalmology. DOI PubMed