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食物中的纤维素是一种高分子碳水化合物,它广泛存在于粗粮、蔬菜、水果之中。纤维素曾被人们视为营养价值不高,也不会产生热量,又不易消化吸收的食物残渣。近几年来,研究人员发现纤维素可有效地防治冠心病、糖尿病、结肠癌、肥胖症、便秘等疾病,并被有些人称为人体的“清道夫”、“防癌卫士”,普遍受到人们的青睐,甚至有些人将纤维素食品作为主要饮食。其实,纤维素食品虽然对人体有一定的好处,但过多食用则对身体有害,特别是对老年人来说,更不能过多食用纤维素食品。 1、老年人胃肠功能减弱,对食物的消化吸收能力相对降低。一旦过多地摄入难以消化的纤维素食
Cellulose in food is a kind of macromolecular carbohydrate, which is widely found in coarse grains, vegetables and fruits. Cellulose has been regarded as nutritional value is not high, it will not produce heat, but also difficult to digest and absorb the food residue. In recent years, researchers have found that cellulose can effectively prevent and cure diseases such as coronary heart disease, diabetes, colon cancer, obesity and constipation, and are called “scavengers” and “guardians of cancer” by some people and are generally accepted by people Favored, and even some people will be the main dietary fiber foods. In fact, although the cellulose foods have certain benefits to the human body, but excessive consumption is harmful to the body, especially for the elderly, but not too much consumption of cellulose foods. 1, the elderly gastrointestinal function weakened, the relative digestion and absorption of food decreased. Once ingested too hard to digest fiber food