by Julia Griffin

“Scientists say mystery of how red wine headaches occur may be solved…
A flavanol called quercetin… is processed in the body into various substances.
One of these, quercetin glucuronide, turned out to be particularly effective at blocking
the enzyme that converts acetaldehyde into acetate.”
—The Guardian

A flavanol known as quercetin,
As is clear to the veriest cretin,
Turns its glucuronide
On acetaldehyde,
Which explains why red wine does your tête in.