*Seaweed is rich in iodine and excessive consumption may result in iodine poisoning. High levels of iodine can interfere with the function of the thyroid gland. Also, consuming excess amounts of iodine-rich foods isn't recommended if there is a known allergy or hypersensitivity to iodine.
* There is a danger in simply buying brown seaweed in the form of kelp, kombu or kombu powder as a dietary supplement. Consuming large amounts of kombu can actually pose health risks because kombu consists of indigestible cellulose or non-soluble fiber. Even taking a teaspoon or tablespoon of kombu powder, which appears finely ground, can feel like shrapnel to your colon because it is an insoluble substance. Diarrhea or constipation is likely to occur in those who start eating kombu in larger quantities than their bodies are accustomed to. Therefore, taking small amounts of extract derived from properly harvested brown seaweed is the ideal way to jumpstart your metabolism and fat-burning system in just a few weeks. When used alone, the results are noticeably effective, but when used in conjunction with other fat-burning nutrients, the results are extraordinary.
* Don't confuse with [[Fucoidan]] (Fc) : [[Fucoidan]] (Fc) is a sulfated fucose-rich polysaccharide that is present in high levels in brown seaweed and has been shown to have anticancer and antioxidant effects in animal experiments. Fucoxanthin (Fx) is a red-orange carotenoid that is extracted from natural seaweed. It has been reported to have a potential in improving obesity and having anti-cancer effects
==The benefits of Fucoxanthin are==