CEACAM5 and cancer: This study also evaluated cancer markers, including carbohydrate antigen 125 (CA125), carcinoembryonic antigen (CEA), α-fetoprotein (AFP), and carbohydrate antigen 19-9 (CA19-9), in two groups of gynecologic cancer patients who had bilateral ovarian and bilateral fallopian excisions and were consuming either 0 or 50 mL of OO every morning.