“…Seaweeds are known to be a healthy food with low calorie content and high fi ber and mineral content, with signifi cant amounts of protein, vitamins, and trace elements and a wide range of secondary metabolites not found in other organisms. Because of this additional uses as a natural source of functional ingredients, this resource is particularly attractive (Ferraces-Casais et al, 2011;Senthil et al, 2011). In this context, a brief review is presented of the potential uses of K. alvarezii and its carrageenan as a dietary fi ber, cholesterol reducer, and a source of antioxidant, anti-viral and anti-cancer compounds, as well as its effects on hemagglutination activity.…”