Although there are different ways to achieve the desired sex of the fetus, most of those are not completely effective. This paper reports a study on human to check the theories which hypothesize that high potassium maternal diet, douching with alkaline substance to change vaginal PH and intercourse around ovulation affects the sex ratio of the progeny
Materials and methods
A quasi-experimental study of 242 couples wishing to preselect the male sex of their child was conducted in Urmia University of Medical Sciences in 2001-2012. All of the clients used a constant guideline including high potassium diet, douching with soda (alkaline substance) and determination of timing of ovulation using both ultrasound and calendar methods. They recommended having intercourse on the first 24 hour after proposed ovulation time.
Records of 242 patients were studied. Pregnancy outcomes included 178 (73.5%) boys and 64 (26.5%) girls, sex ratio calculated 2.8. In 19 cases, ultrasound was used to determine the time of ovulation, in this group 17 boys and 2 girls were borne with sex ratio of 8.5. This ratio showed a significant difference with the group who have not used ultrasound (P=0.000). These results show ultra sound have important role to determine ovulation time. Male ratio has increased dramatically among employed mothers with higher educational and vs. house wife mothers with lover education (sex ratio=6.1 male ratio=0.84).
Our results support hypothesis predicting male sex of offspring using high potassium diet, vaginal douching with alkaline substance and sexual intercourse around ovulation.