Why Are Oysters an Aphrodisiac? - Clean Eating

Part of oysters' aphrodisiac "brand" is the sensuality of the eating experience itself. And since desire all happens in the organ between your ears, anything you think is an aphrodisiac can easily become an aphrodisiac. It just doesn't have much to do with zinc or amino acids.

The Weird History of Oysters as Aphrodisiacs | WIRED

It's anyone's guess how that rumor began, but it's especially perplexing how it has morphed into the claim that oysters are aphrodisiacs---a food myth that has stuck in our minds for centuries, despite the absence of scientific evidence. Not that scientists haven't tried to support it.