选什么主食和吃多少主食，直接关系到血糖控制的好坏， 在介绍四大类主食之前，糖友们一定要先认识这个被称为现代”富贵病”的救命食品，它就是魔芋也叫蒟蒻，市面上能买到的有魔芋米, 魔芋粉, 和魔芋豆腐，主要成份只有水和魔芋，魔芋是一种水溶性膳食纤维， 非常有嚼劲, 饱腹感强, 净碳水化合物和升糖指数接近于零,本身没有什么味道, 可凉拌，涮火锅或做骨头汤面等，是糖友必备食品之一。好了，接下来将分别从根茎类，杂粮类，干豆类，以及米麦类这4个方面把未精制的主食做个排序…
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