winter wheat contain about 12.6 grams of&nbsp; protein , 1.5 grams of total&nbsp; fat , 71 grams of&nbsp; carbohydrate &nbsp;(by difference), 12.2 grams of dietary&nbsp; fiber , and 3.2&nbsp;mg of&nbsp; iron &nbsp;(17% of the daily requirement); the same weight of hard red spring wheat contains about 15.4 grams of&nbsp; protein ,