"Breast cancer test kits by genetic testing company andMe just received Food and Drug Administration approval. The prescriptionfree test is the first to report on three specific BRCA and BRCA breast cancer gene mutations according to the FDA. By analyzing DNA collected through a saliva sample the test detects increased risk of developing breast ovarian or prostate cancer. More Breast cancer Study finds tumor risk increased by use of oral contraceptives https More A man a camera and a pink tutu fight breast cancer https But it has a lot of caveats warned Donald St. Pierre acting director of the FDAs Office of In Vitro Diagnostics and Radiological Health. The test detects only three out of more than  known BRCA mutations. That accounts for a small percentage of people. Those most at risk of developing such cancers are of Eastern European Jewish descent. The test should not be used as a substitute for seeing your doctor for cancer screenings or counseling on genetic and lifestyle factors that can increase or decrease cancer risk he said. These tests might help with prevention but cannot diagnose cancer and cannot rule out your chances of getting cancer andMe httpsblog.andme.comhealthtraitsmajormilestoneconsumerhealthempowerment said.  Still the company which already tests DNA for other health risks as well as ancestry said this cancer test is a step in the right direction."