Palm jaggery , also known as "karupatti" in South India, is a traditional sweetener made from the sap of palm trees. Unlike regular sugar, palm jaggery powder is unrefined and contains essential nutrients such as iron, magnesium, and potassium. Karuppatti – palm jaggery / panai vellam. Palm jaggery is a kind of sweetener used in South India. It is used in preparing many Indian medicines, especially Tamil medicines and healthy food. When mixed with tamarind extract and dry ginger, it is believed to treat UTIs and kidney stones. It is also believed to be a healthy and less caloric sugar for everyone.