Bladderwrack
A type of seaweed that is a rich source of iodine and is used to support thyroid health.
Also known as: Fucus vesiculosus
Overview
Bladderwrack (Fucus vesiculosus) is a type of brown seaweed that grows in the coastal waters of the Atlantic and Pacific oceans. It has been used for centuries in traditional medicine for a variety of ailments, but it is most well-known for its high iodine content. Iodine is an essential mineral that is necessary for the production of thyroid hormones, which regulate metabolism and many other important bodily functions. A deficiency in iodine can lead to hypothyroidism, a condition in which the thyroid gland does not produce enough hormones. Bladderwrack is a natural source of iodine and is often used to help prevent or treat iodine deficiency and support thyroid health. In addition to its iodine content, bladderwrack is also a good source of other minerals, vitamins, and antioxidants. It also contains compounds called fucoidans, which have been shown to have anti-inflammatory, antiviral, and anti-cancer properties.
Key Benefits
Supports Thyroid Health
Bladderwrack is a rich source of iodine, which is essential for the production of thyroid hormones.
Rich in Nutrients
Bladderwrack is a good source of minerals, vitamins, and antioxidants.
May Have Anti-inflammatory Properties
The fucoidans in bladderwrack have been shown to have anti-inflammatory effects.
Dosage & How to Take
Dosage can vary depending on the iodine content of the supplement. It is important not to exceed the recommended daily intake of iodine.
| Purpose | Dose | Notes |
|---|---|---|
| Thyroid Support | 500-1,000 mg of dried herb daily | Ensure the supplement is standardized for iodine content. |
Best Time to Take
Can be taken with or without food.
With or Without Food
Can be taken with or without food.
Forms & Bioavailability
| Form | Absorption | Best For | Notes |
|---|---|---|---|
| Bladderwrack Capsules | High | Thyroid support | Look for supplements with standardized iodine content. |
| Dried Bladderwrack | Medium | Making teas or infusions | Iodine content can vary. |
Side Effects & Safety
Common
- Generally well-tolerated at recommended dosages.
Rare
- Excessive iodine intake can cause thyroid problems, such as hyperthyroidism or hypothyroidism.
Contraindications
- Individuals with thyroid disorders should consult with a healthcare professional before taking bladderwrack.
Interactions
May interfere with the effectiveness of thyroid medications.
Scientific Research
The effects of Fucus vesiculosus, an edible brown seaweed, on menopausal symptoms: a randomized, placebo-controlled trial
Bladderwrack was found to be effective in reducing the frequency and severity of hot flashes in menopausal women.
Food Sources
Frequently Asked Questions
Medical Disclaimer
This content is for educational and informational purposes only and is not intended as medical advice. Always consult with a qualified healthcare professional before starting any supplement regimen, especially if you have pre-existing health conditions or are taking medications. The statements on this page have not been evaluated by the Food and Drug Administration.