Hermetica Superfood Encyclopedia
Legacy index-continuity record: the score and narrative are provisional and must not be represented as validated or human-approved.
Review flags: AWAITING_SEMANTIC_VALIDATION
Bladderwrack (Fucus vesiculosus) is a brown seaweed containing high concentrations of iodine and fucoidan polysaccharides. These compounds support thyroid hormone synthesis and provide anti-inflammatory effects through modulation of thyroid function and immune pathways.
Reported Benefits (Provisional)
Origin & History
Bladderwrack is a brown seaweed found in coastal regions of the Atlantic and Pacific Oceans. Known for its air-filled bladders that keep it buoyant in water, bladderwrack has been used for centuries in traditional medicine, particularly for supporting thyroid health, digestion, and skin conditions. Rich in iodine, antioxidants, and polysaccharides, bladderwrack is a functional food with numerous health benefits.
Research Narrative (Provisional)
(study on thyroid and iodine-related benefits of bladderwrack); Research focus: antioxidant and digestive effects of bladderwrack; Research focus: fucoxanthin and weight management benefits of bladderwrack
Preparation & Dosage
Dosage guidance is withheld because the publication gate has not recorded adequate support for this profile.
Nutritional Profile
Bladderwrack is rich in iodine, essential for thyroid health, and polysaccharides, which support digestive and immune health. It also contains antioxidants such as fucoxanthin and phlorotannins, as well as minerals like calcium, magnesium, and potassium, which contribute to its overall health benefits.
Reported Mechanism (Provisional)
Bladderwrack's iodine content supports thyroid hormone synthesis by serving as a substrate for thyroperoxidase enzyme activity in T3 and T4 production. The alginate and fucoidan polysaccharides form protective gels in the digestive tract, reducing inflammation through inhibition of pro-inflammatory cytokines. Fucoidan also modulates immune function by activating macrophages and natural killer cells.
Clinical Narrative (Provisional)
Limited human studies exist for bladderwrack supplementation. A small pilot study (n=23) showed improved thyroid function markers after 8 weeks of bladderwrack extract consumption. In vitro studies demonstrate fucoidan's anti-inflammatory properties, but large-scale clinical trials are lacking. Most evidence comes from traditional use and laboratory studies rather than robust human trials.
Also Known As
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