The U.S. Department of Agriculture released its 2010 Dietary Guidelines for Americans on Monday. There weren't many surprises in its recommendations to reduce fat and salt, eat whole grains, and cut the overall amount we eat.

But here's one thing that might surprise you. Chapter Three, titled "Foods and Food Components to Reduce," deals with alcohol. The Guidelines, created by America's leading health researchers, state: "Alcohol consumption may have beneficial effects when consumed in moderation (up to two drinks daily)....