喝绿茶的好处
防癌抗癌
喝绿茶能够防癌抗癌。绿茶茶叶中含有的儿茶素、茶多酚等物质都是具有抑制癌细胞功效的。而且虽然其他茶类也含有防癌抗癌因子，但是远没有绿茶防癌抗癌的效果好。现在有医学实验已经证明了，绿茶对于胃癌、肠癌的防御抵抗作用效果明显。
/iknow-pic.cdn.bcebos.com/d62a6059252dd42af1ea59d20f3b5bb5c8eab8ec"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/d62a6059252dd42af1ea59d20f3b5bb5c8eab8ec?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/d62a6059252dd42af1ea59d20f3b5bb5c8eab8ec"/>
延缓衰老
经常饮用绿茶能够帮助延缓衰老。我们知道在人体进行新陈代谢的时候如果身体过度氧化会导致大量自由基的产生，让人体衰老速度加快。而绿茶中含有的儿茶素具有很好的消除自由基，保护细胞膜，帮助延缓衰老。
/iknow-pic.cdn.bcebos.com/b3119313b07eca808816629e9d2397dda14483bc"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/b3119313b07eca808816629e9d2397dda14483bc?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/b3119313b07eca808816629e9d2397dda14483bc"/>
降低血脂
经常喝绿茶能够有效帮助降低血脂，是因为在绿茶中含有的儿茶素能够促进血液中胆固醇的分解，缓解血液高凝的状态。患有高血脂的人群，经常饮用绿茶能够有效降低血清中的总胆固醇和甘油三酯的含量，血液粘度也会较低。经常饮用绿茶不仅能够帮助降血脂还能有效防止心血管疾病。
/iknow-pic.cdn.bcebos.com/38dbb6fd5266d0166ddcc6519b2bd40734fa3585"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/38dbb6fd5266d0166ddcc6519b2bd40734fa3585?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/38dbb6fd5266d0166ddcc6519b2bd40734fa3585"/>
瘦身减肥
绿茶中好含有丰富的维生素C，据分析计算，每100克绿茶中大概含有约280毫克的维生素C。并且绿茶中没有像水果中可能含有的高糖成分，饮用绿茶毋须担心存在的发胖风险。另外绿茶中还能帮助减少身体中脂肪细胞的堆积，在减脂中不断瘦。
/iknow-pic.cdn.bcebos.com/8c1001e93901213fbb3915a558e736d12f2e9544"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/8c1001e93901213fbb3915a558e736d12f2e9544?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/8c1001e93901213fbb3915a558e736d12f2e9544"/>
预防龋齿
我们知道现在的牙膏里面会添加一种叫做“氟”的物质来帮助预防龋齿。其实再萝卜茶中就含有这种物质。经常饮用绿茶或者是用绿茶漱口都能很好的帮助消除牙缝中的部分污垢，并且能够帮助预防龋齿。经常这样做还能防止蛀牙，去除口臭呢。
/iknow-pic.cdn.bcebos.com/0ff41bd5ad6eddc40c89ef8235dbb6fd52663358"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/0ff41bd5ad6eddc40c89ef8235dbb6fd52663358?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/0ff41bd5ad6eddc40c89ef8235dbb6fd52663358"/>
清热解毒
绿茶最早被发现的功效就是清热解毒，它苦而寒，经常饮用能够有效帮助降火解毒。绿茶中含有的叶绿素、鞣酸，能够帮助消炎抗菌、清热解毒，对于经常上火，脸上长痘痘的人来说，饮用绿茶绝对是最好的缓解这些症状的一大选择之一。
/iknow-pic.cdn.bcebos.com/8b13632762d0f7032204cea504fa513d2697c511"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/8b13632762d0f7032204cea504fa513d2697c511?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/8b13632762d0f7032204cea504fa513d2697c511"/>
防辐射
经常饮用绿茶能够很好地改善看不见的辐射危害是人体健康的情况。因为绿茶中含有的一种名为脂多糖的物质，能够有效帮助提高人体的非特异性免疫功能，能够有效帮助身体抵抗辐射。经常接触能够产生辐射的电子产品的人不妨试试每天饮用绿茶。
/iknow-pic.cdn.bcebos.com/cb8065380cd791236756cf0da1345982b2b78011"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/cb8065380cd791236756cf0da1345982b2b78011?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/cb8065380cd791236756cf0da1345982b2b78011"/>
消除疲劳
饮用绿茶能够帮助消除疲劳，这是因为绿茶中含有的儿茶素和维生素C，能够分泌出帮助对抗疲劳、压力、紧张的荷尔蒙，让人饮用之后能够感觉到轻松。而且绿茶中含有的少量咖啡因能够刺激中枢神经，让人精神振奋，疲劳顿消。
/iknow-pic.cdn.bcebos.com/1c950a7b02087bf4a35c0c90fed3572c11dfcf13"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/1c950a7b02087bf4a35c0c90fed3572c11dfcf13?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/1c950a7b02087bf4a35c0c90fed3572c11dfcf13"/>
喝绿茶的坏处
导致胃病
饮用绿茶特别是饮用新茶的时候，茶叶中含有的未经过氧化的多酚类、醇类等等物质能够对人体的肠胃产生较大的刺激，导致肠胃不适，出现胃病。另外对于胃寒的人来说，饮用绿茶会加重胃部不适。
/iknow-pic.cdn.bcebos.com/e7cd7b899e510fb3631b2ceed533c895d1430c4c"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/e7cd7b899e510fb3631b2ceed533c895d1430c4c?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/e7cd7b899e510fb3631b2ceed533c895d1430c4c"/>
影响铁元素吸收
绿茶中含有的鞣酸会妨碍身体对于铁元素的吸收，很容易造成身体出现缺铁性贫血。特别是处于经期的女性，不宜饮用绿茶。还有要注意的是鞣酸不仅影响铁元素的吸收还可能影响乳腺的血液循环，需要哺乳的产妇也不宜饮用绿茶。
/iknow-pic.cdn.bcebos.com/e824b899a9014c08ca4573dc067b02087bf4f449"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/e824b899a9014c08ca4573dc067b02087bf4f449?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/e824b899a9014c08ca4573dc067b02087bf4f449"/>
增加心脏负荷
如果是经常喝太多的绿茶，对于身体较弱的老年人来说，还可能增加他们的心脏负担，导致血压的升高，特别是加绿茶冲泡较浓的时候，更容易导致心脏负担过重，甚至出现心力衰竭。
/iknow-pic.cdn.bcebos.com/a9d3fd1f4134970a0b8b4b5699cad1c8a6865dca"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/a9d3fd1f4134970a0b8b4b5699cad1c8a6865dca?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/a9d3fd1f4134970a0b8b4b5699cad1c8a6865dca"/>
诱发便秘
过多地饮用绿茶还可能导致便秘。因为绿茶中含有的鞣酸还可能与食物中的蛋白质发生结合，形成不容易被消化的沉淀物质，导致便秘。所以，绿茶不宜一天之内饮用过多。
/iknow-pic.cdn.bcebos.com/7a899e510fb30f242e86b67ac495d143ad4b03ae"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/7a899e510fb30f242e86b67ac495d143ad4b03ae?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/7a899e510fb30f242e86b67ac495d143ad4b03ae"/>
什么时候宜喝绿茶
午后适宜喝绿茶，通常情况下，人体在中午时分会肝火旺盛，此时饮用绿茶可以疏肝降火、清热解毒。
/iknow-pic.cdn.bcebos.com/35a85edf8db1cb136ead656ad154564e93584b86"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/35a85edf8db1cb136ead656ad154564e93584b86?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/35a85edf8db1cb136ead656ad154564e93584b86"/>
什么人不宜喝绿茶
并不是所有的人都适合喝绿茶，贫血、脾胃不好、患结石、发烧、便秘、营养不良以及孕妇等人，喝茶不利于身体健康，不宜喝绿茶。
/iknow-pic.cdn.bcebos.com/a686c9177f3e67098d2d1d8637c79f3df8dc559d"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/a686c9177f3e67098d2d1d8637c79f3df8dc559d?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/a686c9177f3e67098d2d1d8637c79f3df8dc559d"/>