Quick Navigation

Ecklonia cava

Ecklonia Cava is a brown seaweed with a rich polyphenolic content (this particular subset being known as eckols or phlorotannins) that confers anti-oxidant properties, it is being investigated for health properties.

Our evidence-based analysis on ecklonia cava features 65 unique references to scientific papers.

Research analysis led by .
Reviewed by
Examine.com Team
Last Updated:

Summary of Ecklonia cava

Primary information, health benefits, side effects, usage, and other important details

Ecklonia Cava is a type of seaweed which is known to be one of the highest sources of phloroglucinols, a type of antioxidant compound that appears to be unique to sea plants. The phloroglucinols appear to be very potent anti-oxidants, and these benefits have been noted after oral ingestion as well.

That being said, the potency of Phloroglucinols being anti-oxidants seems to be a bit separate from the magnitude of benefit one gets from ingesting these compounds. Benefits have been noted on blood pressure, blood glucose, and inflammation but for the most part these are statistically sound but practically small benefits. The current human evidence is unconvincing for the most part, although these compounds and seaweed are undoubtedly 'healthy' as a general statement.

Other effects that seem interesting for Ecklonia Cava are an apparently anti-allergic potential that is not highly explored, and there appears to be some anti-cancer properties as well (mostly tested in regards to melanoma). Topical application of Ecklonia is one of a few compounds that can enhance hair growth, and it appears to be novel in the sense that it both inhibits androgen-induced hair loss and also directly enhances hair growth (so it, by itself, appears to be some form of combination therapy).

Make sure you only take supplements that work

Examine.com bases all of its recommendations on published scientific research. We’re a trusted resource because we don’t sell or even advertise supplements.

If you’re tired of wasting time and money on supplements that don’t work, our 17 Supplement Guides will help you figure out precisely what to take — and what to skip — based on your health goals and the latest scientific evidence. There’s a reason why over 50,000 customers rely on Examine.com’s independent and unbiased analysis.

Includes free lifetime updates so you always have the most accurate information.


I want unbiased recommendations to improve my health »

How to Take

Medical Disclaimer

Recommended dosage, active amounts, other details

Ecklonia Cava products appear to benefit the body in relatively low doses, with weak health benefits on blood pressure and glucose in the range of 100mg; higher doses (which would be expected when consuming the seaweed itself as a food product) confer dose-dependent responses.

Get the latest information on 400+ supplements and their effects on 600+ health conditions & outcomes.

By becoming an Examine Plus member, you'll have access to all of the latest nutrition research. Quickly and easily look up scientific research on over 400 supplements across over 600 different health goals, outcomes, conditions, and more.

Already a subscriber to any of our membership plans? Click here to login.

Human Effect Matrix

Unlocked for Examine Plus members

The Human Effect Matrix summarizes human studies to tell you what effects Ecklonia cava has on your body, how much evidence there is, and how strong these effects are.

Full details are available to Examine Plus members.
Grade Level of Evidence
Robust research conducted with repeated double-blind clinical trials
Multiple studies where at least two are double-blind and placebo controlled
Single double-blind study or multiple cohort studies
Uncontrolled or observational studies only
Level of Evidence
? The amount of high quality evidence. The more evidence, the more we can trust the results.
Outcome Magnitude of effect
? The direction and size of the supplement's impact on each outcome. Some supplements can have an increasing effect, others have a decreasing effect, and others have no effect.
Consistency of research results
? Scientific research does not always agree. HIGH or VERY HIGH means that most of the scientific research agrees.
Notes
grade-c Minor - See study
May reduce blood glucose levels, not overly potent in doing so
grade-c Minor Very High See 2 studies
A possible reduction in blood pressure in overweight persons with supplementation of ecklonia cava
grade-c Minor Very High See 2 studies
Possible reductions in LDL-C
grade-c Minor Very High See 2 studies
A possible reduction in total cholesterol concentrations
grade-c - - See study
No significant influence on triglycerides noted with ecklonia cava
grade-d Notable - See study
Appears to reduce C-reactive protein, with the degree of reduction being noted almost a halving
grade-d - - See study
No significant influence on HDL-C detected

Become an Examine Plus member to access the latest nutrition research on over 400 supplements across over 600 different health goals, outcomes, conditions, and more.

Becoming an Examine Plus member not only unlocks the Human Effect Matrix for supplements, but also all health topics on Examine.com. We neatly summarize all the latest research so you can make the best decisions for your health based on what's accurate and not out-dated information.

Things to Note

Is a Form Of

Do Not Confuse With

Kava (not related to Ecklonia Cava)

Tired of misinformation? Get unbiased info on supplements.

At Examine.com, our incentives line up with yours — getting unbiased information. It’s why we don’t sell any advertising or supplements.

Join over 250,000 people who’ve learned about effective versus overrated supplements, supplement buying tips, and how to combine supplements for safety and efficacy.

Click here to see all 65 references.