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Bladderwrack Powder

Bladderwrack Herb Powder

Fucus vesiculosus

Origin: France
From£17.57 per kg

Fucus vesiculosus, known by the common names bladderwrack, black tang, rockweed, bladder fucus, sea oak, cut weed, dyers fucus, red fucus, and rock wrack is a seaweed found on the coasts of the North Sea, the western Baltic Sea, and the Atlantic and Pacific Oceans. It was the original source of iodine, discovered in 1811 and was used extensively to treat goitre, a swelling of the thyroid gland related to iodine deficiency.


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History and background

Bladderwrack became well known in the early 1800s, when it was discovered to contain a high concentration of iodine. In fact, bladderwrack was instrumental in the discovery of the element. A French scientist called Bernard Courtois discovered it in bladderwrack and another type of seaweed simultaneously – and entirely by accident. Little did he know at the time, iodine would go on to play an instrumental role in medicine over the decades to come.

Its history is believed to date back much further than that, however. The first documented history of the species begins in the 1300s, when it was first harvested in Portugal.

How to use Bladderwrack Powder

Bladderwrack was the original source of iodine used for medicinal reasons. Like all seaweeds, it’s a nutrient-rich food that features a range of powerful antioxidants and compounds. It has a variety of different uses as a result, from treating thyroid issues and inflammation to seasoning the likes of soups, salads, stews, smoothies and more.

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Bladderwrack is preferred by horses and dogs, containing more than 70 vitamins and minerals. Bladderwrack is rich in iodine, calcium, magnesium, potassium, sodium, sulfur, silicon and iron and high in some B-complex vitamins. It is said to be good for convalescing and elderly horses, and can be used to support mobility, healthy digestion & healthy joints. It is not recommended for pregnant and nursing mares.

Bladderwrack is nutritious, edible raw and cooked with a strong flavor. It can be used sparingly in soups and the like, depending upon your like or dislike of the flavor. It tastes like salty fish.

Bladderwrack has been used as a topical treatment for skin issues, such as cellulite, skin aging, and burns. As a source of iodine, discovered back in 1811, it was mainly used to treat goiter, a swelling of the thyroid glands linked to iodine deficiency. It is also said to aid digestion, boost weight loss, promote healthy aging and support heart health.

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Delivery Information

Most of our ingredients can be delivered within 2-3 working days, with free delivery to the UK mainland on all orders over £25 and a 30 day returns policy. For more information, visit our Delivery & Returns page.

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Great products, quick delivery, very pleased, thank you.

Arrived on time. All good.

Good quality product, great service.

An absolute pleasure to buy from with super quick delivery too 5 stars all the way.

Item as described and quick delivery.

Excellent Seller & highly recommended! Super swift dispatch and delivery of great item arriving in less than 48 hours & exactly on its estimated due date too. Superb all round service. Many thanks!

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Frequently Asked Questions

Bladderwrack is best known as a source of iodine. Consuming it can promote a healthy thyroid function as a result, and other compounds found within it have anti-inflammatory, antioxidant and anticarcinogenic properties.

The high iodine content of bladderwrack helps promote weight loss by stimulating the thyroid, increasing our body’s metabolic rate.

Both have their advantages; for example, sea moss contains more calcium than bladderwrack, though bladderwrack contains more iodine.