U-Fucoidan May Help Cancer Prevention & how!!! Fucoidan is a water-soluble dietary fiber. Numerous scientific researchers have demonstrated that fucoidan, isolated from brown algae, possesses antioxidant, immunostimulatory and antitumor activities, and it can activate macrophages, prevent oxidative damage of DNA, and especially induce apoptosis?, thereby controlling carcinogenesis. Apoptosis is an internal mechanism native to all biological cells which triggers them to self-destruct when they are “malfunctioning” or abnormal. Most of the cells die naturally when they reach a certain lifespan and they are replaced by the regeneration of new cells. Cancer cells, however, do not die by themselves and will mutate and continue multiplying at uncontrolled rates. The extraordinary healing property of fucoidan is that it can activate this mechanism of apoptosis of cancer cells to self-destruct without damaging normal cells or causing adverse side effects.