Fucus vesiculosus, known by the common name bladder wrack, is a seaweed found on the coasts of the North Sea, the western Baltic Sea, and the Atlantic and Pacific Oceans, also known by the common names black tang, rockweed, bladder fucus, sea oak, black tany, cut weed, dyers fucus, red fucus, and rock wrack. 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. In the 1860s, it was claimed that bladder wrack, as a thyroid stimulant, could counter obesity by increasing the metabolic rate and, since then, it has been featured in numerous weight-loss remedies. Bladder wrack has been shown to help women with abnormal menstrual cycling patterns and/or menstrual-related disease histories. Doses of 700 to 1400mg/day were found to increase the menstrual cycle lengths, decrease the days of menstruation per cycle, and decrease the serum levels of 17B-estradiol while increasing progesterone. A study of the effects of bladder wrack on the etrus cycle of female rats was later carried out and showed similar effects. Bladder wrack should not be used in cases of hyperthyroidism or cardiac problems, or during pregnancy and lactation. Excessive dosage (many times the recommended dosage) may lead to hyperthyroidism, tremor, increased pulse rate and elevated blood pressure.
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BLADDER WRACK POWDER
Bladder wrack has been shown to help women with abnormal menstrual cycling patterns and/or menstrual-related disease histories. Doses of 700 to 1400mg/day were found to increase the menstrual cycle lengths, decrease the days of menstruation per cycle, and
