Astaxanthin for Oxidative Stress
CSmall randomized trials show astaxanthin supplementation may enhance IgM and IgG immunoglobulin production and T-cell function. Evidence is early-stage but consistent across multiple small trials, with astaxanthin's potent antioxidant capacity well-established.
The Bottom Line
Small randomized trials show astaxanthin supplementation may enhance IgM and IgG immunoglobulin production and T-cell function. Evidence is early-stage but consistent across multiple small trials, with astaxanthin's potent antioxidant capacity well-established.
Key Study Findings
Population: None
Population: 90 women with type 2 diabetes mellitus (6 groups, n=15)
Population: systematic review of carotenoids for antiaging (nutraceutical, pharmaceutical, cosmeceutical)
Population: Mouse preantral follicles in vitro culture
Population: Rats with 5-FU-induced liver damage
Population: Cyclophosphamide-induced oligoasthenozoospermia mice
Key Statistics
3
Studies
100
Participants
Positive
Grade
Referenced Papers
Dosage & Usage
mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units
Commonly Used Dosages
- general:
- 4-12 mg/day
Upper limit: No established UL; well-tolerated up to 40 mg/day
Dosages Studied in Research
| Dosage | Duration | Effect | N |
|---|---|---|---|
| None | -- | Mixed | -- |
| 8 mg/day astaxanthin | 8 weeks | Positive | 90 |
| None | -- | Positive | -- |
| 2.5 nM | -- | Positive | -- |
| 16 and 32 mg/kg/bw | -- | Positive | -- |
| None | -- | Positive | -- |
| None | -- | Positive | -- |
| 100 mg/kg/day | 1 weeks | Positive | -- |
Best taken: With meals containing fat
Safety & Side Effects
Reported Side Effects
- ⚠ Mild orange skin discoloration at very high doses
- ⚠ Gastrointestinal discomfort
- ⚠ Generally very well tolerated
Known Interactions
- ● Anticoagulants (theoretical interaction due to antioxidant effects)
- ● Blood pressure medications (may have additive effects)
- ● 5-alpha-reductase inhibitors (theoretical hormonal interaction)
Tolerable upper intake: No established UL; well-tolerated up to 40 mg/day
Always consult your healthcare provider before starting any supplement.
Frequently Asked Questions
Does Astaxanthin help with Oxidative Stress?
How much Astaxanthin should I take for Oxidative Stress?
Are there side effects of Astaxanthin?
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FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. The products and information on this website are not intended to diagnose, treat, cure, or prevent any disease. The evidence grades presented are based on our analysis of published peer-reviewed research and do not constitute medical advice. Always consult your healthcare provider before starting any supplement regimen.