谷类是中国人传统的主食,一直以来,谷类的精细和洁白程度都被当作是评价质量好坏的一个标准。但这显然是一个误区。如今,颜色洁白均一、富含油脂香味、手感松软、口感细腻的“白富美”主食受到了众多人的追捧。然而,从健康的角度分析,这种主食并不是最佳选择。首先,主食之所以发白,是由于其营养成分中碳水化合物所占的比例大。但在这种情况下,主食中所含的钙、铁、锌等微最元素和B族维生素以及膳食纤维的量就会相对减少。因此,主食颜色越白对健康越不利。另外,颜色过白的主食还有可能是因为加了 Cereal is the traditional Chinese staple food. The fineness and whiteness of cereals have all along been used as a criterion to evaluate the quality. But this is obviously a misunderstanding. Today, the color is uniform white, rich in oil and fragrance, feel soft, delicate taste “White Fu Mei ” staple food has been sought after by many people. However, from a health point of view, this staple food is not the best choice. First of all, the reason why the staple food is white is due to the large proportion of carbohydrates in its nutrients. However, in this case, the staple food contains calcium, iron, zinc and other micro-elements and B vitamins and the amount of dietary fiber will be relatively reduced. Therefore, the color of the staple food more harmful to health. In addition, the white color of the staple food may also be because of the added