It's an urban myth that whole grain bread is good for you. Those little kernels are packed with crystalline starch, which turns to pure glucose in your digestive tract. A hearty slice of whole grain bread will shoot your blood sugar up higher than a slice of white bread. Sure, it has more fiber than white bread but not enough to do you much good. A slice has about 2 grams compared to 12 grams for a half-cup of bran cereal (The recommended daily allowance is 25 grams.)It has more vitamins and protein, but vitamin and protein deficiencies are unheard of in developed countries.