The information given on this website is given in good faith.

Much of the information is based on traditional herbal practices.

Always consult your Doctor or other Qualified Medical Practitioner before making any changes to your diet or taking any herbal remedies.

BioKi Limited

Galtee House 1 Heanor Road

Ilkeston Derbyshire DE7 8DY


Bio Ki Gung
Food Supplements

Fucus vesiculosus: Known by the common name bladder wrack or bladderwrack, Fucus vesiculosus is a seaweed found on the coasts of the North Sea, the western Baltic Sea and the Atlantic and Pacific Oceans.

It also known by the common names black tang, rockweed, bladder fucus, sea oak, black tany, cut weed, dyers fucus, red fucus and rock  wrack.


The primary chemical constituents of this plant include mucilage, algin, mannitol, beta-carotene, zeaxanthin, bromine, potassium, volatile oils, iodine and many other minerals.

It was the original source of iodine, discovered in 1811.


Iodine is an essential mineral for normal thyroid function, mammary gland development and foetal and infant neurological growth. It also has a powerful antioxidant and alkalising effect.


The main use of bladder wrack (and other types of seaweed) in herbal medicine is as a rich source of iodine. It has been used in the treatment of under-active thyroid glands (hypothyroidism) and goitre. It has also been shown to help women with abnormal menstrual cycling patterns and menstrual-related disease histories.


Overall, seaweeds form an essential source of natural iodine and are described as an ideal food-safe natural source of the mineral. Iodine is proven to be highly beneficial in the diet and significantly deficient in western diets.