Each person has a risk of getting cancer. As a matter of fact, micro level cancer cells develop in the human body every day, but they are eliminated by our immune system. It is accepted by researchers that most people get cancer once or more and recover during their lifetimes. Becoming more and more common among humans, cancer is thought to be the nightmare of the future. Curcumin, the active ingredient of Curcuma Longa, has been found to have an effect on cancer-prone cells and to reduce telomerase activity and to suppress cancer. Consumption of curcimin now plays a key role in protection against cancer, since it is described as anti-carcinogenic agent.