Oligo-Fucoidan, a heparin-like molecule with high percentages of L-fucose and sulfated ester groups and low percentages of D-xylose, D-galactose, D-mannose, and glucuronic acid, was present in the cell wall matrix of brown seaweed. Brown seaweed Oligo-Fucoidan was reported to demonstrate various
The relationship between the relative breast cancer (BC) risk and seaweed intake among humans is only now unfolding. A small body of research, both in vivo and in vitro, suggests seaweed may be useful in BC prevention (Funahashi et al. 1999; Teas et al. 1984; Yamamoto et al. 1987) . Seaweeds are