Study yields new insights into why some people get headaches from red wine

"It's a knotty issue because of the complexities of both wine and human genetics/physiology."

"Red wines typically have more amines, sulfites, flavonoids, and tannins, particularly a compound with antioxidant properties called resveratrol."

"The science to date is largely unclear regarding which components of red wine are responsible, as well as the mechanisms behind the phenomenon."

Read at Ars Technica