Not All Nuts Are Created Equal When you walk down the snack aisle, those shiny packages of mixed nuts all look pretty similar ...

Walnuts are a tree nut that originated some 7,000 years ago where Iran is today. They are grown in many countries, but the United States, China, Iran, Chile and Ukraine are the top producers globally.

Eating walnuts may improve endothelial function in patients with type 2 diabetes, data suggest. David L. Katz, MD, and colleagues at the Yale University’s Prevention Research Center in Derby, Conn., ...