Turmeric powder is a bright yellow powder made by dry grinding of mature turmeric rhizomes (underground stems). The use of turmeric for coloring and flavoring food, for cosmetic purposes and for medicinal properties . Used in almost all Indian curries, this spice has almost no calories (1 tablespoon = 24 calories) and zero cholesterol. It is rich in dietary fiber, iron, potassium, magnesium and vitamin B6.