13 Grams of whole grains per slice. Good source of fiber. At Brownberry, we know how important eating right is to you and your family. Prominent nutritionists recommend whole grains as the cornerstone of a healthy diet, so flavorful Whole Grains breads are made from hearty favorites like wheat, oats and barley. With no trans fats, they're perfect for creating delicious sandwiches with the benefits of whole grains. USDA 2005 Dietary Guidelines recommend 3 or more ounces of whole grains per day.