Oyelola O O, Ayangade S O, Amole F
Department of Chemical Pathology, Faculty of Health Sciences, Obafemi Awolowo University, Ile-Ife, Oyo State, Nigeria.
Contraception. 1987 Oct;36(4):435-40. doi: 10.1016/0010-7824(87)90092-8.
The effect of eight common local mineral water drinks in Ile-Ife, Nigeria (seven cola and one lemon-based) on sperm motility in vitro was carried out. There was no significant difference in the pH values of all the drinks, the pH ranged between 2.30-2.50. After one minute, Pepsi-Cola had the least inhibitory effect on sperm motility, Bitter-lemon had the strongest effect, while the other brands had varying effects between the two extremes. The percentage motility inhibition by the mineral water drinks is also a function of the initial total sperm count in the semen.