Researchers from the British Royal Society   of Chemistry claim bread and honey is the best cure for a hangover. Lead researcher   Dr. John Emsley says the fructose that is present in honey breaks down alcohol   into harmless by-products. “The reason why hangovers are so painful is that   alcohol is first broken down into acetaldehyde, a substance which is toxic to   the body and causes throbbing headaches, nausea, and vomiting. The hangover   disappears as the acetaldehyde is slowly converted to less toxic chemicals.   When honey and toast are consumed together, potassium and sodium are added to   the body, which helps the body in handling the alcohol."