Researchers found that fucoidan extracted from brown algae was good for human health, the immune system and was even quite effective in the treatment and prevention of cancer. Scientists have found a method of strengthening fucoidan’s effects using sulfate. Clinical tests on animals and living cancer cells prove the effectiveness of fucoidan with high sulfate content. On average, 205 people die of cancer each day in Vietnam. The country ranks 78th in the world in terms of cancer fatality rate.