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The literature reports as much as 30,000 μg/L (30 mg/L) of iodine being safely excreted in the urine in a single day, with levels returning to the standard range in a couple of days, depending on seaweed intake. [76]
Their protein content is low and their heavy metal content is high, especially for arsenic and iodine, which are respectively toxic and nutritious. [37] [38] They are valued for fish production. [39] Adding seaweed to livestock feed can substantially reduce methane emissions from cattle, [40] but only from their feedlot emissions. As of 2021 ...
Seaweed contains high levels of iodine, tyrosine relative to other foods. [17] It is also rich in calcium and magnesium. [18] Seaweed is a possible vegan source of Vitamin B12. [19] The vitamin is obtained from symbiotic bacteria. [20]
Iodine deficiency is a lack of the trace element iodine, an essential nutrient in the diet.It may result in metabolic problems such as goiter, sometimes as an endemic goiter as well as congenital iodine deficiency syndrome due to untreated congenital hypothyroidism, which results in developmental delays and other health problems.
Seaweed might be the greatest untapped resource we have on this planet, writes Vincent Doumeizel. Opinion: Seaweed is nutritious, not slimy. Eating it could save the world.
Bladder wrack is named for its conspicuous vesicles. Fucus vesiculosus, known by the common names bladderwrack, black tang, rockweed, sea grapes, 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.
The species Saccharina latissima yielded the greatest amount of iodine (between 10 and 15 lbs per ton) and was most abundant in Guernsey. Iodine was extracted from kelp ash using a lixiviation process. [42] As with sodium carbonate however, mineral sources eventually supplanted seaweed in iodine production. [43]
Iodine in the ocean exists mostly in oceanic sediments and seawater. [4] During subduction of oceanic crust and seawater, most of the iodine cycles into seawater through brine, while a minor amount is cycled into the mantle. [4] Marine biota, including seaweed and fish, accumulate iodine from the seawater and return it during decomposition. [2]