June 24, 2011 (San Diego) -- A very low-calorie diet of 600 calories a day may be able to reverse type 2 diabetes, preliminary research suggests.

Eleven people who had been diagnosed with type 2 diabetes within the past four years slashed their calories for eight weeks, sticking to a diet of liquid diet drinks and non-starchy vegetables.

Three months after going off the diet, seven were free of diabetes.

Sound too tough to follow? Don't worry, the researchers aren't recommending the low-cal diet as a treatment for diabetes.

"We used the 600-calorie diet to test a hypothesis. What I can tell you definitively is that if people lose substantial weight by normal means, they will lose their diabetes," says study head Roy Taylor,MD, director of the Newcastle Magnetic Resonance Centre at Newcastle University in England.

The findings were published online by the journal Diabetologia and presented here at the annual meeting of the American Diabetes Association (ADA).