A new study found that the drink contains high concentrations of chemicals that help the body regulate levels of sugar in the blood.
High levels of sugar in the blood can cause tiredness, heart disease, strokes, blindness, nerve damage and kidney disease, reports the journal Food and Function.
The condition occurs when the pancreas is unable to produce enough insulin - the hormone that regulates blood sugar - or when its insulin does not work properly, according to the Daily Mail.
Just a small glass of red wine contains 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, study authors believe moderate drinking as part of a calorie controlled diet could protect against type 2 diabetes.
Past studies have shown that natural chemicals found in grape skin and wine called poly phenols can help the body control glucose levels, and prevent potentially dangerous spikes or dips in blood sugar.
The new study compared the poly phenol content of 12 different wine varieties. The team, from the University of Natural Resources and Applied Life Sciences, Vienna, found that levels were higher in red wines.
However, their conclusions angered Diabetes UK who accused the researchers of making "astonishingly bold suggestions" based on "limited research".
The charity warned that wine was so high in calories that it could lead to weight gain - outweighing any benefit.
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