Sea cucumber has been used in traditional Chinese medicine for hundreds of years, but they are relatively obscure in the U.S. This may be soon changing, however, as evidence mounts that sea cucumber extracts can kill cancer cells while stimulating the immune system. As reported by Ethan Evers, author of "The Eden Prescription," previous research on sea cucumber has demonstrated its ability to kill lung, breast, prostate, skin, colon, pancreatic, and liver cancer cells. These extracts have also proven effective in killing leukemia and gioblastoma cells. Looks like we can add yet another food to the list of anti-cancer foods.