Oysters are the mouthwatering mollusks that are universally considered the classic aphrodisiac. And there's research supporting the notion that these bivalves boost libido: raw oysters are very high in zinc, which raises sperm and testosterone production.

Like some fish, oysters contain omega-3 fatty acids, considered to increase one's overall well-being and even fight depression. They're also a source of dopamine, but there's still no definitive scientific information about oysters' ability to induce desire. That said, Casanova might disagree. The infamous 18th century womanizer ate 50 raw oysters every day.