Turmeric has one of the longest histories of use for medicinal purposes in the world. This spice is used in Ayurvedic medicine, an Indian system for healing that dates back thousands of years. The bright yellow coloured turmeric root is also often used in curries and most mustards, giving them their signature colour. Turmeric is from the same family as ginger but unlike ginger, it contains the powerful antioxidant curcumin.