Whole grain breads more minerals like zinc, and copper, more vitamin B and have 75% more dietary fiber. And remember the USDA recommends getting at least 5 to 11 servings of breads, pastas, cereals, or rice everyday. Sound like a lot? Well not really. One serving is equal to one slice of bread, or a half a cup of oatmeal, couscous, or even popcorn.