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Fucoxanthin is a natural substance sourced from brown seaweed such as wakame and hijiki and offers a number of benefits as it is categorized as a carotenoid (a class of plant pigments with antioxidant effects). Brown seaweed also contains chlorophyll A and C. As of late, fucoxanthin is being used as a supplement and in supplements because of its abilities. It is used for weight loss, diabetes, cancer, heart disease, high blood pressure, high cholesterol, metabolic syndrome, and obesity. Obesity: fucoxanthin shows promise in the treatment and prevention of obesity, according to a research review published in 2015 (Zhang H, Tang Y, Zhang Y, et al. Fucoxanthin: a promising medicinal and nutritional ingredient). In their analysis of previously published experimental studies, the review's authors found that fucoxanthin may fight obesity in several ways. Fucoxanthin may inhibit the build-up of abdominal fat and reduce build-up of fat in the Liver. There's also some evidence that fucoxanthin may affect the body's levels of leptin (a hormone essential for hunger control.

Diabetes: an animal study published in 2009 found that fucoxanthin may aid in the management of diabetes. In the study, tests on mice demonstrated that fucoxanthin may help regulate blood sugar as well as treat insulin resistance (Maeda H, Hosokawa M, Sashima T, Murakami-Funayama K, Miyashita K. Anti-obesity and anti-diabetic effects of fucoxanthin on diet-induced obesity conditions in a murine model).

Cancer: in preliminary studies on cell lines, scientists have observed that fucoxanthin may possess anti-cancer properties. These studies include a report published in 2015, which found that treatment with fucoxanthin may help thwart the proliferation of some breast cancer cells (Rwigemera A, Mamelona J, Martin LJ. Comparative effects between fucoxanthinol and its precursor fucoxanthin on viability and apoptosis of breast cancer cell lines MCF-7 and MDA-MB-231. Anticancer Res. 2015;35(1):207-219). It appears that fucoxanthin may suppress cancer growth in part by inducing apoptosis (a type of programmed cell death essential for stopping the proliferation of cancer cells), as well as by acting as an anti-angiogenesis agent (a type of substance that stalls the growth of new blood vessels).

Brain cancer: a UK-based project has found that a compound in brown seaweeds could help to treat one of the most common forms of malignant brain tumour (

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