Calif. researchers think they know why red wine causes headaches
Briefly

"Acetaldehyde can produce adverse effects such as nausea, diaphoresis, facial blushing, and headache at higher concentrations," the report read.
While there's no need to dump your red wine down the drain (seriously don't do that) here's a much-needed silver lining. The report mentioned that two studies have found that white wine has "almost ten-fold" lower levels of quercetin compared to red wine.
Read at SFGATE
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