Japanese seaweed possesses remarkable immunizing properties, especially in fighting cancer. Japanese researchers at the University of Kitasato have discovered 6 kinds of seaweed which inhibit the growth of colon cancer cells in rats, notably two types of Laminaria.
Laminaria extract has proven 70% to 84% effective in suppressing intestinal tumors. Wakame, another Japanese seaweed, is now familiar to many Westerners, thanks to the arrival in the west of Japanese macrobiotic cooking, which uses it a lot. Pharmacologists at the University of Hawaii injected rats with an extract of this substance. They found that the seaweed helped prevent and cure cancer. The researchers claim that Wakame fights cancer by activating and strengthening the immune system. It can be found in most health food stores.