Why red wine gives some people headaches: study provides clues
A flavanol in grapes called quercetin can interact with alcohol to cause toxic buildup of acetaldehyde.
US researchers think they have cracked the mystery of why some people get almost immediate ‘red wine headaches’, even if no other alcoholic drinks do the same.
Quercetin, a flavanol found in fruits and vegetables, appears to be the culprit, according to findings in Scientific Reports.
