TY - JOUR T1 - Folic acid and colorectal cancer: unwarranted fears JF - Canadian Family Physician JO - Can Fam Physician SP - 889 LP - 890 VL - 57 IS - 8 AU - Gideon Koren Y1 - 2011/08/01 UR - http://www.cfp.ca/content/57/8/889.abstract N2 - Question Some of my female patients are afraid of taking folic acid because they “fear cancer.” What is the evidence for this? Answer Theoretical evidence in experimental models is sharply contrasted by 3 recent meta-analyses of randomized and observational studies. Women planning to become pregnant should supplement with the folate dose they need to prevent neural tube defects. ER -