Curcumin, the main ingredient in the spice turmeric, may help stop breast cancer from spreading to the lungs.The finding appears in Clinical Cancer Research. It’s based on tests on mice, not people."We are excited about the results of the study and the possible implications for taking the findings into the clinic in the next several years,” says researcher Bharat Aggarwal, PhD, in a news release.Aggarwal works at the University of Texas M.D. Anderson Cancer Center.Turmeric is often found in curry spice mixes. Curcumin is used in traditional Chinese and Indian medicine to treat a variety of conditions.