Turmeric (Curcuma longa) is a bright yellow spice and a traditional remedy that has been used as a medicine, condiment, and flavoring since 600 BC. The rhizome (underground stem) is the part of the plant that is harvested and ground to make the spice. The key bioactive constituents found in turmeric are three kinds of curcuminoids: curcumin, demethoxyl-curcumin, and bisdemethoxyl-curcumin.
