In this case, other foods that contain quercetin are not associated with headaches, so you might not initially consider quercetin as the cause of the red wine problem.

New research suggests a likely culprit of red wine headaches is quercetin, a compound found in grape skins.

We checked the labels of mass-produced popular grocery items and found the dyes in dozens of foods you may have in your pantry right now.

We checked the labels of mass-produced popular grocery items and found the dyes in dozens of foods you may have in your pantry right now.

In this case, other foods that contain quercetin are not associated with headaches, so you might not initially consider quercetin as the cause of the red wine problem.

In this case, other foods that contain quercetin are not associated with headaches, so you might not initially consider quercetin as the cause of the red wine problem.

They also contain quercetin, a chemical that can help your body fight cancer, and organic sulfur compounds that can reduce your risk of high blood pressure, stroke and heart disease.

We checked the labels of mass-produced popular grocery items and found the dyes in dozens of foods you may have in your pantry right now.

We checked the labels of mass-produced popular grocery items and found the dyes in dozens of foods you may have in your pantry right now.