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糖是人類賴以生存的重要物質之一
來源:    發布時間: 2013-04-15 11:30   3408 次瀏覽   大小:  16px  14px  12px
糖是人體三大主要營養素之一,是人體熱能的主要來源。糖供給人體的熱能約占人體所需總

糖是人體三大主要營養素之一,是人體熱能的主要來源。糖供給人體的熱能約占人體所需總熱能的60~70%,除纖維素以外,一切糖類物質都是熱能的來源。

  糖是自然界中最豐富的有機化合物。糖類主要以各種不同的淀粉、糖、纖維素的形式存在于糧、谷、薯類、豆類以及米面制品和蔬菜水果中。在植物中約占其干物質的80%,在動物性食品中糖很少,約占其干物質的2%。

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