An aphrodisiac, named after the ancient Greek goddess Aphrodite, is any food substance which causes arousal or increases sexual desire (libido). There are many foods which are said to be aphrodisiacs, and while a few of them actually are, some are only working because of a placebo effect.
So what about bananas? Are bananas an aphrodisiac?
Well, the phallic shape of the fruit certainly makes it one of the more sexually suggestive foods that you can eat, but is there actually anything in a banana that can increase your sex drive? Possibly, but not a whole lot.
Bananas are very high in potassium and vitamin B, both of which can increase testosterone production and kick-start the libido into action. Bananas also contain something called the bromelain enzyme, which is said to help increase male libido. There is little scientific research to back this up, however, so the claim that bananas are a true aphrodisiac should be taken with a grain of salt.