Due of the importance of folic acid in the development of the fetal nervous system, it is necessary to adopt strategies that encourage the consumption of the vitamin in order to mitigate the frequency of neural tube defects (NTDs). In the present study, was evaluated the impact generated by campaigns promoting folic acid consumption in a college population. The results when compared with those of the survey conducted in 2006, show that knowledge about folic acid has a different ratio of 6% but this figure is not significant, however, the difference in the proportion of women who know benefits of vitamin B9 is 13% and this figure proved to be significant. The aforementioned data demonstrate that campaigns do work, but it is very important that these interventions are included in pedagogical processes, in order to constantly remember information associated with folic acid and generate awareness of the importance.