Fucoidan 85 – 500mg


  • To boost the immune system
    In vitro data suggest a role for fucoidan in boosting host defense mechanisms. Several human studies also suggest it may help stimulate immune functioning and boost antibody production after vaccination.
  • To reduce inflammation
    Several in vitro and animal studies suggest that fucoidan has anti-inflammatory properties. Human studies are needed.
  • To prevent cancer
    Several in vitro and animal studies show that fucoidan has antitumor properties. Clinical trials have not been conducted.
  • To lower blood pressure
    A study in overweight and obese adults suggests that fucoidan use over a sustained period may decrease diastolic blood pressure and as well as “bad” cholesterol levels. Studies to confirm these results are needed.
  • To prevent blood clots
    Laboratory studies suggest that fucoidan has anticoagulant and antithrombotic effects. A study in humans also suggests it slows the production of blood clots. As such, fucoidan may interfere with blood-thinning medication.
  • To prevent infections
    Laboratory and animal studies indicate that fucoidan has antiviral properties.




Fucoidan is a complex polysaccharide found in many species of brown seaweed.  The brown seaweeds containing fucoidan are widely consumed as part of the normal diet in East Asia, particularly Japan, China, and Korea.

The anti-cancer property of fucoidan has been demonstrated in vivo and in vitro in different types of cancers.  Fucoidan mediates its activity through various mechanisms such as induction of cell cycle arrest, apoptosis, and immune system activation. Additional activities of fucoidan have been reported that may be linked to the observed anti-cancer properties and these include induction of inflammation through the immune system, oxidative stress and stem cell mobilization[*]

While more studies are needed to confirm safety and effectiveness, one human study suggests that fucoidan may help to enable longer courses of chemotherapy.  Because of its anti-clotting property, fucoidan may increase the side effects of “blood-thinning” drugs.


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