平常生活中该喝什么样的水

2025-04-04 00:47:10
推荐回答(1个)
回答1:

矿泉水、纯净水、电解水、矿化水、蒸馏水、磁化水……消费者实在是搞不清楚该喝什么水了,有的干脆就只喝“白开水”了。有些水是有实实在在的保健功能?还是纯纯粹粹的商业炒作?老百姓该选什么水饮用呢?

纯净水国外只是“佐餐水”。饮用纯净水是通过电渗析法、离子交换、蒸馏法及反渗透等技术来净化原水,从而把水中的重金属、三氯甲烷、有机物、放射性物质、微生物等有害、有毒、有异味物大部分去掉,消除对人体健康的直接和潜在危害。纯净水不能经常喝。它把所有矿物质去掉以后,在清除有害元素的同时,把对人体有益的物质也除掉了,有用和没用的全部除掉了。就像给婴儿洗澡,洗完后连婴儿都泼走了。前两年纯净水的广告很多,我们全家也是从那个时候开始只喝纯净水,后来又听说纯净水不能长期喝,所以我想问一下,纯净水到底能否长期饮用?纯净水由于去除了水中的杂质、微生物、矿物质等元素后,口感较好,但纯净水是酸性水,pH值低于6.5(自来水的pH值为6.5~8.5),这种水不但不能带来矿物质,长期喝还会把身体原有的矿物质游离掉,偶尔喝一次还是没有关系。 在日本的超市里没有纯净水,可见,他们是根本不把纯净水作为日常饮用水的。事实上纯净水在国外的瓶装水里是没有作为主流产品的。在国外它实际上是作为佐餐用水的,人们平时很少喝。

矿化水是在纯净水的基础上添加矿物质元素,或是按照天然矿泉水的矿物质含量和比例向纯净水中添加,是对纯净水的再加工。喝矿化水实际上喝的就是化学溶液。矿化水是在纯净水中加入某些矿物质元素,和矿泉水是有本质区别的。从理论上说,往水中人工加与天然矿泉水完全相同的矿物质元素,是不可能的,无论钙、锌等元素,一加就容易出现沉淀。自然界水中矿物质本身不是游离的,呈现水合离子形式存在,水合是一个漫长过程,人工添加的矿物质不容易与水完美的形成水合离子。矿化水中添加的矿物质从种类和数量以及丰度不能与天然矿泉水相比,某些厂商声称水中加了钙,喝了就能补钙,实际上添加量是非常少的。目前国外有海洋深层水,通常称为脱盐再矿化,这种水中就含有丰富的矿物质,与人工矿物质水有本质的区别。在国外是没有矿化水或矿物质水这个名字的,在欧洲和美国都叫再矿化水,制配过程就是纯净水加矿物质。我们国家没有标准,国外也没有标准。比较规范的厂家以矿泉水作为指标,比如在纯净水中加一些矿元素;不守规矩的厂家往纯净水里加一把盐,含钠也有微量元素,也叫矿物质水。这种水,国外专家普遍认为对人体并没有多大益处。
每天应喝500毫升矿泉水。饮用天然矿泉水是从地下深处自然涌出的或经人工开采的未受污染的地下矿泉水;含有一定量的矿物盐、微量元素和二氧化碳气体。矿泉水可以长期放心喝,但是每天喝500毫升就够了,适量喝矿泉水对身体健康肯定有益处。我们平时喝的瓶装、桶装水就可以统称为包装水。包装水在我国家实际就是三种水,一个是矿泉水,一个是纯净水,还有矿物质水。矿泉水的标准在所有水种之中是最先推出来的,目前这一标准在国内外都是最完整的、最规范的。所以,只要是按这个标准来生产的矿泉水,绝对是健康的、卫生的。天然矿泉水中的矿物质对身体健康很有益处,可以长期喝。

  康熙、雍正和乾隆皇帝很欣赏西山的山泉水,每天都叫人从北京的西直门运进来作为皇宫御水,其实,“御水”就是矿泉水。矿泉水是有营养的,而纯净水在滤去有害物质的同时,把好的物质也过滤掉了,喝了还可能加重脱水。市面上还有卖山泉水的,它是不是矿泉水呢?山泉水都不一定是矿泉水,国家对矿泉水规定了严格的指标,符合这些标准的才能称得上是矿泉水。

  作为老百姓来说,是不是就天天喝矿泉水就可以了?虽然矿泉水符合国家标准,也很健康,但是矿物质含量多,每天1500~2000毫升水都喝这个也不行。矿泉水每天喝500毫升就够了,其余的喝白开水就行。

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