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什么是粗粮？当然除精白大米、面粉等细粮之外的其他粗制的含纤维多的粮食都属于粗粮，如糙米、小米、玉米、高粱，黄米等。杂粮指的是种植面窄不是主食的辅助粮食，如燕麦、荞麦、绿豆，黄豆黑豆，蚕豆、红小豆等。精粮和杂粮难以界定，粗细只是相对概念，并没有数和量的具体要求。随着科技和经济的发展，其内涵也会不断发展；不同历史时期，内容也不断变化。
What is coarse grain? Of course, in addition to refined rice, flour and other coarse grains other than the coarse fiber-containing foods are coarse grains, such as brown rice, millet, corn, sorghum, yellow rice and so on. Miscellaneous grains refers to the planting of noodles is not a staple of food, such as oats, buckwheat, mung beans, soybeans, black beans, beans, red beans and so on. Fine grain and miscellaneous grains are difficult to define, and weight is only a relative concept. There are no specific requirements for quantity and quantity. With the development of science and technology and economy, its connotation will also continue to develop; different historical periods, the content is also changing.