**4. Conclusion**

Turmeric is a commercially important spice (C. longa L., Zingiberaceae) that is widely utilized as a nutritional component in Asia and Western countries. It has long been renowned for its therapeutic and medicinal properties against a wide range of ailments, as reported in traditional, herbal, and other alternative forms of mainstream medicine. The bioactive component of turmeric (curcuminoid) is famous for its abundant pharmacological properties. Researches had shown that active components in turmeric other than curcuminoids are equally useful and have several medicinal potentials. Finally, as autoimmune-related diseases are increasingly associated with cumulative exposure, special attention should also be paid to their prominent potential in both toxic and pollutant exposures.
