Diamond Premium walnuts - make ordinary meals extraordinary. As a garnish or ingredient, they add elegance to salads, entrees, side dishes, and desserts. Reach for Diamond Premium Walnuts for the highest quality, freshness and value - the world"s favorite walnuts since 1912. In fact, according to the Food and Drug Administration, supportive but not conclusive research shows that eating 1.5 oz of walnuts per day, as part of a low saturated fat and low cholesterol, diet and not resulting in increased caloric intake, may reduce the risk of coronary heart disease. Product USA.