Tumeric is a commonly used curry spice. Its key ingredient is a polyphenol known as curcumin.
In the past decade there has been an explosion of interest in the benefits associated with Curcumin, with more than 800 studies done in the last four years alone. What researchers know so far is that Curcumin contains polyphenols and curcuminoids that have antioxidant, anti-inflammatory and anti-amyloid properties. It interferes with tumor development, prevents oxidative damage to cells, and reduces brain plaques associated with Alzheimer's disease. Other health benefits associated with a diet rich in Curcumin include the reduction of inflammatory bowel disease, improvement of liver function, it's even known to lower cholesterol and act as a pain reliever.