Americans consume about 130 pounds of fresh and processed potatoes per capita annually, and in 2008 U.S. farmers harvested some 41.3 billion pounds of spuds on more than one million acres. So making even small changes in how potatoes are grown could yield big benefits for the environment.

DALLAS -- People with Parkinson's disease have significantly higher blood levels of a particular pesticide than healthy people or those with Alzheimer's disease, researchers at UT Southwestern Medical Center have found.

At first it may seem only right for Dean Foods Co., the nation's largest organic dairy producer, to roll out a line of yogurts and milk marketed as "natural." But Dean's announcement last week alarmed advocates of organic food, who say the burgeoning market for less-expensive "natural" foods reaps billions from consumers while guaranteeing little or nothing in exchange.