" diabetes, consuming white rice was associated with higher risk. Daily servings of white rice were associated with a 17 percent greater risk of diabetes, whereas replacing one-third of a serving a day of white rice for brown rice might lead to a 16 percent drop in risk. And it looks like replacing white rice with oats and barley may be an even more powerful step, associated with a 36 percent drop in diabetes risk.88 Given the improvements in cardiac risk factors seen in interventional trials of whole grains,89 it’s not surprising to see a reduction "

― Michael Greger , How Not to Die: Discover the Foods Scientifically Proven to Prevent and Reverse Disease