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长期吃它,可以缓解宝宝大便干燥、便秘吗?

发布日期:2024-07-15 16:39:21编辑:网络收集

宝宝大便干燥、便秘这些问题一直都是育儿过程中高频且长期出现的,每天求助奶粉智库的宝妈也是不计其数。最近,有宝妈提到这样一些:

那我们今天来看一下:膳食纤维可以缓解宝宝大便干燥、便秘吗?

膳食纤维是指不能直接被人体消化道的分解酶直接消化、吸收和利用的多糖和木质素,主要包括纤维素、木质素、抗性低聚糖、果胶、抗性淀粉等,以及其他不可消化的碳水化合物。

因为膳食纤维无法直接在肠道被消化、吸收,所以很长一段时间,人们都认为它是无用物。随着后来科学的营养、食品研究,研究者发现膳食纤维对人体具有非常重要的作用。随着对膳食纤维的重视,后来把它与其他六大营养素并列,成为“第七大营养素”。

根据膳食纤维是否能溶解于水,可以分为:

可溶性膳食纤维主要来源于果胶、藻胶、魔芋等,它可以在胃肠道内和淀粉等碳水化合物交织在一起,延长这些食物在肠道中停留的时间,使消化、吸收更加完全。

不可溶性膳食纤维的最佳来源是全谷类粮食,其中包括麦麸、麦片、全麦粉及糙米、燕麦全谷类食物、豆类、蔬菜和水果等。它们有助于促进胃肠道蠕动,使食物加快通过胃肠道,减少吸收。另外,不可溶性纤维在大肠中吸收水分软化大便,可以起到防治便秘的作用。

按照来源的不同,可以分成以下几种:

膳食纤维一旦消化道,在胃里可以直接吸水膨胀,使人容易产生饱腹感,这也是减肥的人偏向膳食纤维的原因;同时,由于重量和体积原因,也会促使食物快速通过胃道向下蠕动。进入小肠的膳食纤维几乎不能被消化酶分解,并且一些纤维容易在肠内形成粘膜或者凝胶,会阻碍对食物中脂肪和胆固醇的吸收,因此有助于降低胆固醇。

因此,膳食纤维越来越受减肥和中老年被“三高”困扰的人群喜爱。

膳食纤维尽管无法被人体的消化酶直接吸收,但当它随着营养物质进入肠道,特别是大肠,能够被肠道细菌分解并发酵,能有效平衡肠道内的PH值,从而有助于改变肠内微生物菌群的构成与代谢,促进有益菌群大量繁殖。

当膳食纤维进入肠道,被肠道细菌发酵后形成的物质能够刺激肠道粘膜,从而增加排便感觉。同时,由于膳食纤维具有吸水性,也可以增加粪便的重量和体积,使干燥的粪便软化,利于肠道蠕动,也增加了排便的频率。所以,便秘的宝宝适当摄入富含膳食纤维的食物,是可以的。

但需注意的是,在饮食中增加膳食纤维的同时,一定要增加宝宝的水量。因为膳食纤维在消化道中收集食物残渣的和有毒物质(粪便)的同时,也吸收了大量的水,如果不补充水分,膳食纤维会使大便变硬,反而可能加重宝宝的便秘!

由于现在的食物越来越精细、越来越柔软,使用口腔肌肉牙齿的机会越来越少,因此,牙齿脱落、龋齿出现的情况越来越多。而膳食纤维通常都需要咀嚼,适当增加膳食纤维自然就增加了使用口腔肌肉牙齿咀嚼的机会。同时,膳食纤维在牙齿表面的机械性摩擦也可以清洁牙齿表面。长期下去,能使口腔得到保健,功能也得以改善。

如果宝宝从小坚持食用适当的富含膳食纤维的食物,有助于锻炼咀嚼能力和牙齿的咬合功能,更容易长出一口好牙!

平常所说的糙米和胚牙精米以及玉米、小米、大麦、小麦皮(米糠)和麦粉(黑面包的材料)等杂粮富含丰富的膳食纤维。此外,根菜类和海藻类中食物纤维也较多,如:胡萝卜、四季豆、红豆、豌豆、薯类和裙带菜等。

总的来看,膳食纤维在蔬菜水果、粗粮杂粮、豆类及菌藻类食物中含量丰富。

纤维食物有“生命绿洲”之称,然而随着近十数年我国的饮食结构的变化,很多人群摄入的膳食纤维都无法达到标准。而且现在很多宝宝也存在大便干燥、甚至便秘的现象,这和饮食结构也存在一定关系。

宝宝在6个月之前吸收的营养都是来自妈妈的乳汁,因此妈妈的饮食要注重均衡营养。当发现宝宝存在便秘的现象,妈妈要适当调整自己的饮食结构。

根据《中国居民膳食指南》建议,处于哺乳期的妈妈每天可以食用250-300g的谷类、75g薯类,其中其谷物和杂豆不少于1/3;蔬菜类500g,其中绿叶蔬菜和红黄色等有色蔬菜占2/3以上;水果类200-400g。

如果是由于母乳不足选择奶粉喂养的宝宝,胃肠道的消化、吸收功能不完善,可以考虑含有益生菌、益生元组合或者OPO的奶粉,有助于调理宝宝肠胃,减少便秘的几率。

当宝宝添加辅食后,如果经常出现大便干燥、便秘的情况,那么可以考虑平衡膳食,在辅食中适当添加膳食纤维。以下是7-24月龄的宝宝的平衡膳食宝塔。

可以看到,宝宝所需的膳食纤维主要来自于一、二层的谷类和蔬菜水果。按照图中的标准,7-12月龄,每日谷物20-75g、蔬菜水果每日各25-100g;而13-24月龄,宝宝每日谷物50-100g、蔬菜水果每日各50-150g。

需要注意的是,膳食纤维除了谷物外就主要来源于各类水果,而各种水果的口感差异大,在添加过程中更要注意循序渐进的原则。选择水果时,需要注意水果是凉性还是温性;喂养宝宝时,一次喂养不可过量。

如果需要进行调理,仍旧建议从宝宝的奶及饮食结构方面进行调理;严重者,建议听从医嘱。

解答:随着人们对膳食纤维的重视,也逐步开发出关于膳食纤维的补充剂。对于小于6个月没有添加辅食的宝宝,一些宝妈想通过给宝宝增加膳食纤维补充剂的方式来缓解便秘。对此,我们的建议是:不要给宝宝使用膳食纤维补充剂!!!

宝宝的肠胃消化功能不够完善,一些宝宝的肠道菌群本身就不够活跃,因此消化、吸收的能力并不强。如果额外添加人体并不能吸收的膳食纤维更容易加重宝宝负担,可能造成肠胃功能紊乱,甚至引发肠道疾病。

因此,我们对于膳食纤维补充剂的建议是:大人和儿童短期服用酌情选择,长期使用则切忌单一,尽量选择混合膳食纤维的配方;三岁以下宝宝应避免使用。

解答:因为各种肉类、蛋类、奶制品、各种油、海鲜等都不含膳食纤维,膳食纤维主要存在于五谷粗粮、蔬菜水果中。如果过量摄入膳食纤维,也会带来一些危害,比如:造成腹胀、消化不良;也可能影响钙、铁、锌等元素的吸收;还可能降低蛋白质的消化吸收率。

此外,如果在短时间内突然由低纤维膳食转变为高纤维膳食,也可能导致一系列消化道不耐受的反应,如胃肠胀气、腹泻腹痛等。因此,应注意循序渐进增加膳食纤维,同时大量饮水,促进排便。

现在你知道了吧?坚持合理地摄入富含膳食纤维的食物,确实有助于帮助宝宝缓解大便干燥、便秘等问题,而最重要的还是要饮食均衡、合理搭配!

今天的文章到这里就结束啦~如果您还有任何疑问,可以在文末给我们评论留言~

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