About Dunaliella salina
A halophilic microalga used as a natural source of mixed carotenoids, primarily beta-carotene (both all-trans and 9-cis isomers). Value is as a carotenoid/provitamin-A source rather than an independently studied supplement; standalone clinical evidence is minimal. Score its contribution via its carotenoid content, not the algae name.
What Dunaliella salina supports
- Natural source of mixed beta-carotene (provitamin A)
How much Dunaliella salina to take
The RDA prevents deficiency. The effective range is what clinical trials used to actually move the outcome.
Effective
100–1000
mg
No established therapeutic dose; used as a natural mixed-carotenoid source. Nominal range for a blend component.
Clinical evidence
Limited clinical evidence. Natural mixed-carotene source; little standalone clinical data.
NIH Fact Sheet