They’re High in Nutrients and Fiber. … Fiber: The bran provides most of the fiber in whole grains. Vitamins: Whole grains are particularly high in B vitamins, including niacin, thiamin and folate (4, 5). Minerals: They also contain a good amount of minerals, such as zinc, iron, magnesium and manganese.
Calcium. White bread is fortified with calcium and four medium slices per day would provide over 30% of the recommended daily intake of calcium which we need every day to maintain healthy bones and teeth.