Sperm is a reproductive cell found in semen, a fluid that males produce and release during sexual relations. Sperm cells play a vital role in pregnancy. Some men experience infertility because of a low sperm count. Motility, however, slows down when a male consumes too much caffeine, typically after four cups of coffee a day. A ounce can of Mountain Dew contains 54 milligrams mg of caffeine, which is more than other sodas Coke has 34 mg per 12 ounces and Pepsi has 38 mg. But given how a cup of coffee has about mg of caffeine per 12 ounces, and you would have to drink 4 cups to cause a decrease in sperm motility, it becomes easier to understand how little Mountain Dew affects sperm. You would have to drink about eleven ounce cans of Mountain Dew to have a similar effect.
A shocking bit of misinformation has captured the hearts and minds of high school and college students of late — the notion that the popular caffeinated soft drink Mountain Dew can be used as a contraceptive. If Internet chatter is any indication, it is widely believed among people that drinking Mountain Dew "kills sperm cells" or, at minimum, drastically lowers a male's sperm count. There are some who fear it may cause impotency, while others seem to view it as a cheap and easy method of birth control. He likens it people believing Elvis is still alive and claiming to have bumped into him in a convenience store — i. True believers attribute the soft drink's purported sperm-killing properties to its relatively high caffeine content 55 mg. These misconceptions date back to the mids, if not further.
Illustration by Katherine Killeffer. The year was and teenage boys were under a spell cast by Mountain Dew. Rumors flew that one of the very popular soda's synthetic food dyes decreased sperm count ; as a result, some sexually-active teens began binge-drinking the alleged spermicide as their only form of birth control. That year, the rumor gained so much traction that the Wall Street Journal published an article chronicling susceptible teens' belief in it. According to the urban legend, the soda lowers sperm count and thus works as pre-coital contraception because of the soda's dye, Yellow No.
Mountain Dew does not kill sperm, contrary to popular myth. There are two reasons why some people mistakenly believe Mountain Dew kills sperm — caffeine and yellow dye 5. These ingredients are in Mountain Dew but not in high enough quantities to kill sperm.