Red wine compound 'could help tooth decay and gum disease fight'Red wine has previously been linked to a range of supposed health benefits, from helping the heart to lowering the risk of diabetes. Now a new study suggests it contains chemicals that can help in the fight against tooth decay and gum disease. But experts warned that the findings do not offer a "green light" to drink more red wine. Researchers compared the effects of two polyphenols from red wine against grape seed and red wine extract supplements on bacteria that stick to teeth and gums and cause dental plaque, cavities and gum disease. "However, the findings do not support drinking more red wine to stop people getting infections," he said.