Fucoxanthin explained: what it is and its source
Fucoxanthin belongs to a group of substances called carotenoids and comes from brown seaweed and other algae. The NIH says it promotes energy use and the breakdown of fats. One product we reviewed lists fucoxanthin, but none prints its individual amount: LeanBliss includes it in a 250 mg proprietary blend.
- Amounts the NIH names
- One clinical trial used 2.4 mg of fucoxanthin a day for 16 weeks.
- In the products we reviewed
- 1, its label does not print the amount
What fucoxanthin is
How much fucoxanthin each product gives
NIH: 2 mg per dose
Amount not printed: the dashed line shows the most it can be, the whole blend
Before you take it
Ask a doctor first
- Talk with your health care provider before taking a supplement for weight loss, especially if you have high blood pressure, diabetes, heart disease, liver disease, or another medical condition.2
These statements have not been evaluated by the FDA. A supplement is not a medicine.
The product we reviewed that lists fucoxanthin
| Product | Form and serving | Fucoxanthin per serving | Our score | Price a bottle | Buy |
|---|---|---|---|---|---|
 LeanBliss#9 in weight loss support | Chewable tablets1 tablet | Not printedIn a 250 mg proprietary blend | 8.7 | $49 | Check price |
Questions people ask
What is fucoxanthin?
Fucoxanthin belongs to a group of substances called carotenoids. It comes from brown seaweed and other algae.
What does fucoxanthin do in the body?
Fucoxanthin promotes energy use and the breakdown of fats, according to the NIH.
How much fucoxanthin should I take daily?
The NIH names 2.4 mg of fucoxanthin a day for 16 weeks as an amount used in one clinical trial. That describes the trial, not a daily dose recommendation.
What should I check before taking a fucoxanthin supplement?
Ask a clinician before starting a fucoxanthin supplement, especially if you have a medical condition.
Which supplements we reviewed contain fucoxanthin?
One product we reviewed lists fucoxanthin: LeanBliss. Its individual amount is not printed because it is inside a 250 mg proprietary blend. The serving is one chewable tablet.
Sources
The products, amounts and prices come from each product's label and checkout, as its review shows them. AI drafts our pages from listed sources, figures are checked against them, and we have not tried the products.
- 1NIH Office of Dietary Supplements, WeightLoss HealthProfessionalods.od.nih.gov/factsheetschecked
- 2NIH Office of Dietary Supplements, WeightLoss Consumerods.od.nih.gov/factsheetschecked