A small glass of red wine every day could keep adult diabetes under control, scientists claimed last night. A new study found that the drink contains high concentrations of chemicals that help the body regulate levels of sugar in the blood. Just a small glass of red contained as many of these active ingredients as a daily dose of an anti-diabetic drug, the researchers found. Although the study didn't look at the effects of wine on people, its authors believe moderate drinking as part of a calorie controlled diet could protect against type 2 diabetes.