Cladosiphon okamuranus ( mozuku) is a type of edible seaweed in the genus Cladosiphon, naturally found in Okinawa, Japan.
Mozuku is a type of seaweed characterized by its unique viscous texture and the presence of fucoidan, which is gentle to the stomach. Characterized by its thickness and pleasing texture, Okinawan mozuku (a type of stringy seaweed) is widely popular in mainland Japan. While Okinawan mozuku is cooked in various ways, it can also be enjoyed raw. In addition to being low in calories, its simple flavor makes mozuku a suitable ingredient for any type of cuisine.
The main use of mozuku is as food, and as source of one type of sulfated polysaccharide called Fucoidan to be used in cancer treatment aid health supplements.