For diabetes prevention eat nuts and beans, not bread and potatoes

NY Times reports:

People with Type 2 diabetes on a high-fiber diet kept their blood sugar under better control when they ate foods like beans and nuts instead of the recommended whole-grain diet, researchers have found.

Beans and nuts are among foods that only modestly increase blood glucose levels; scientists describe these foods as having a low glycemic index. . . .

The high-cereal high fiber diet emphasized “brown foods” such as whole-grain bread and breakfast cereal, brown rice and potatoes with the skin on. The low-glycemic diet included beans, peas, lentils, pasta, quickly boiled rice and certain breads, like pumpernickel and rye, as well as oatmeal and oat bran cereals.

It's important to consider that some of the low-glycemic foods are only generally considered low-glycemic under certain conditions. For example, instant oatmeal is often considered to be higher glycemic than the whole oats long-time cooking variety.