The government needs a few good men - for research on preventing diabetes.

The National Institutes of Health is recruiting 3,000 Americans at risk of Type II, or adult-onset, diabetes to study whether diet, exercise or the drug metformin can prevent the dangerous disease.Although Type II diabetes strikes men and women equally, two-thirds of study participants so far are women, said Dr. David Nathan, chairman of the NIH-funded Diabetes Prevention Program.

"We are having a little difficulty" enrolling men, Nathan said. "I'm not exactly sure why."

But a new survey by the NIH program found men know very little about diabetes. Nearly 40 percent of men were unable to name any diabetes risk factors, which include being over 45, having relatives with the disease and being overweight.

The survey included 1,359 Americans age 45 and older, 977 of them men.