One of the first diets to limit the intake of carbohydrates was prescribed by Dr. William Harvey in 1862. The diet consisted of three meals a day containing equal amounts of protein per meal. IF protein contains 4 dietary calories per gram, and the diet consisted of 672 dietary calories of protein per meal, how much protein, to the nearest ounce, was in each meal? (1 ounce is approximately 28 grams.)