Turmeric is the spice that gives curry its yellow color. Turmeric is a flowering plant, Curcuma longa of the ginger family, Zingiberaceae, the roots of which are used in cooking. urmeric Contains Bioactive Compounds With Powerful Medicinal Properties. Turmeric Dramatically Increases the Antioxidant Capacity of the Body. Turmeric or its active component curcumin can lower total cholesterol, triglycerides and LDL.