喝咖啡的禁忌
楊惟婷
咖啡的濃純香氣和特殊口味,一直是咖啡盛行於全世界的原因,其魅力足讓許多人迷戀其中;尤其品嚐一杯好的咖啡,更可增添不少生活樂趣。
咖啡之所以被人們譽為神奇的飲料,就是因為咖啡裡所含的咖啡因,咖啡因是興奮劑,可以刺激交感神經系統,從而產生提神和減除疲勞的效用。不過這種效果大量攝取,容易對身體健康有負面影響,所以許多人認為咖啡是一種傷身的飲品。
其實到目前為止,科學上對於咖啡的研究,並沒有找到任何確實證據,證明適量地喝咖啡,對人體健康有害。如要說咖啡因的最大壞處,那就是人吸收咖啡因之後,如果過12到24小時不再吸收咖啡因,就會出現些微倦怠感或不能完全集中精神等現象,這種情況也就是一般人常說的咖啡上癮。
亦也有些研究發現,婦女喝過量咖啡,就會引致骨質流失。
還有些研究結果顯示,血壓偏高的男人,每天連續喝兩、三杯咖啡之後,血壓會顯著增高。
不過,會造成咖啡上癮,也是因為飲用的量過大的關係,許多研究指出,適量的飲用咖啡其實是對身體沒有大礙的。
又如,經過科學實驗證明,血清膽固醇過高並非咖啡因的關係,而是咖啡豆中所含的咖啡豆油所造成,所以,民眾在沖泡咖啡的時候對於浮在咖啡上的油脂要多加注意,如果可以的話盡可能的過濾咖啡液,將咖啡豆油除去,以免影響身體健康。
另外,咖啡液裡頭含有五百多種化學物,民眾不要以為咖啡就只含有咖啡因而已,而且咖啡因也有醫藥上的價值,它能使通往心臟的動脈擴張,增加血液流量;它也能幫助頭部的動脈收縮,有助於紓解偏頭痛的症狀。
所以,我們關心的重點應是,在享用咖啡的同時,有何禁忌值得留意?
為了您的身體健康著想,下次喝咖啡的時候,注意以下這些小叮嚀,您就能夠毫無後顧之憂的享受美味的咖啡喔!
一、不適合喝咖啡的人
基本上咖啡屬於一種刺激性的飲料,所以當您的身體出現了以下的狀況或是疾病的時候,盡量不要喝咖啡,以免造成身體的負擔:
* 發育中的兒童,因腦部尚在發育,因此要少喝含咖啡因的飲料
* 懷孕及哺乳期間婦女,因咖啡因會經由胎盤及乳汁到胎兒及嬰兒
* 老年人,可能會有鈣流失的問題
* 心血管病患者,因發炎指標可能會上升,也要少喝咖啡
* 胃酸過多的人
* 患有胃及十二指腸胃潰瘍者
* 患有腸道過敏症候群者
* 空腹(或飯前)
* 腹瀉者
* 抽煙的人
* 喝酒之後
* 容易失眠的人
* 有精神方面疾病的人
* 正在服用鎮定劑的人
* 限制鉀攝取的腎臟病患
以上這些民眾,都要盡量避免攝取咖啡。
二、喝咖啡要留意的禁忌
◎一天盡量不要攝取到五杯以上。因為咖啡含有咖啡因,喝過量容易上癮。
◎避免空腹喝咖啡。許多人都會在早晨來杯香濃的咖啡,不過在喝咖啡的時候,一定要先吃早餐,避免空腹喝咖啡傷胃。尤其是有十二指腸潰瘍的民眾,絕對要禁止空腹飲用咖啡。
◎盡量不要酒後喝咖啡,以免刺激血管擴張,過度加速血液循環,讓心血管的負擔過大。
◎睡前也不要飲用咖啡,以免失眠。
◎喝完咖啡之後不可以馬上抽煙,許多癮君子喝完咖啡後馬上吞雲吐霧,其實很容易對心臟造成危害。
◎可適量的加入鮮奶。此可以緩和咖啡對胃的刺激,但是若是添加奶精和糖,因為此二者都有熱量,要避免攝取過多反而發胖。
◎服用抗生素和胃潰瘍治療藥物,不可同時喝咖啡,以免刺激胃部,造成疼痛不適。
◎勿喝太濃的咖啡,否則會使人變得急躁且理解力減弱。 (心跳也會加速)
三、咖啡喝多了會中毒嗎?
一般而言,咖啡中咖啡因的含量,因咖啡豆的種類、浸泡時間、研磨顆粒大小、煮的方法、溫度高低…等多種因素而有所差異。
含咖啡因的飲料,每天飲用不宜過量,如果每天攝取咖啡因超過500毫克到1000毫克(1公克),約每天飲用 150cc滴注式研磨咖啡四杯以上或 300cc馬克杯二杯以上,即會有咖啡因輕度中毒的症狀出現。例如煩燥不安、焦慮、易怒、心悸、噁心感,及尿液增加的利尿作用出現。
如果每天極大量飲用咖啡因,超過5公克到1 0公克,約每天飲用 150cc滴注式研磨咖啡45杯以上或 300 cc馬克杯23杯以上,則可能會引起全身抽搐、昏迷、嚴重腦水腫、低血鉀、或心律不整、心臟麻痺,可能會有死亡的危險。
長期喝含咖啡因的飲料是會成癮的,每天攝取咖啡因越大,則成癮的機率也越大,速度也越快。
咖啡成癮的人一旦不喝咖啡,就會有頭痛、全身疲倦、打呵欠…等戒斷症狀出現。但只要忍耐住,數天不喝即可恢後正常。
長期喝咖啡是否對身體健康會有所傷害?到目前醫學上仍有許多爭論存在。根據最近幾年醫學研究報導發現,長期大量喝咖啡可能會有下列影響:
1、咖啡與懷孕婦女的關係
2004年9月,歐州臨床營養學雜誌研究2 521未懷孕婦女,評估生產體重不足新生兒的危險性,如果懷孕前每天喝四杯以上咖啡者為1.3倍,懷孕第一期及第二期如果每天喝三杯以上者為1.2倍。
而且,美國FDA則建議孕婦最好不要喝咖啡 。
另外,長期大量喝咖啡,婦女可能會有鈣流失的問題。
2、咖啡與心血管疾病的關係
2004年9月,營養學雜誌研究年齡42 到60歲1971人,追縱14年發現,每天喝咖啡超過 814cc 的人,得到缺的性心臟病的危險性較不喝者高1.43倍。
另外,美國臨床營養學雜誌發表,研究每天飲用咖啡超過 200cc以上的男女共3000人,發現喝咖啡者發炎指標包括反應蛋白質C、 組織壞死因子、及白血球數目等,都較不喝咖啡者呈有意義的升高,且咖啡喝越多,指標上升越高。可能以後得到心血管疾病的風險也越高。喝咖啡急性期會輕度升高血壓的作用,但是長期飲用後作用不明顯。
3、咖啡與癌症的關係
根據2000年8月的歐州癌症綜論雜誌報告,回顧以前醫學的研究,不認為長久喝咖啡會引起胰臟癌、膀胱癌或其他癌症的風險增加,反倒是有研究認為長久喝咖啡,可能減少得到直腸大腸癌的風險。
4、各種飲料的咖啡因含量:
飲料种類 平均咖啡因含量
滴注式研磨咖啡( 150c c) 110毫克
過濾式研磨咖啡( 150c c) 80毫克
即溶式咖啡( 150c c) 65毫克
一個茶包泡一杯150c c) 40-60毫克
可口可樂(一罐350c c) 45毫克
參考資料:長庚紀念醫院腎臟科 – 林杰樑教授
留言列表(173条)
Hello there, You have performed a fantastic job. I will definitely digg it and individually recommend to my friends. I am sure they will be benefited from this site.
Fantastic website you have here but I was curious if you knew of any message boards that cover the same topics talked about in this article? I’d really love to be a part of group where I can get advice from other knowledgeable individuals that share the same interest. If you have any recommendations, please let me know. Thanks a lot!
Keep on working, great job!
I’m not sure where you are getting your info, however good topic. I needs to spend a while studying more or working out more. Thank you for magnificent information I used to be looking for this information for my mission.
I have been surfing online more than three hours these days, yet I never found any fascinating article like yours. It’s pretty value enough for me. Personally, if all site owners and bloggers made just right content as you did, the internet might be much more useful than ever before.
Incredible points. Solid arguments. Keep up the good work.
of course like your website however you need to test the spelling on quite a few of your posts. Several of them are rife with spelling problems and I find it very bothersome to tell the truth however I will surely come back again.
I don’t even understand how I stopped up here, however I thought this publish was good. I don’t understand who you are however definitely you are going to a famous blogger for those who are not already. Cheers!
Appreciating the dedication you put into your site and in depth information you present. It’s good to come across a blog every once in a while that isn’t the same out of date rehashed material. Fantastic read! I’ve saved your site and I’m including your RSS feeds to my Google account.
I wanted to thank you for this wonderful read!! I definitely enjoyed every little bit of it. I’ve got you bookmarked to check out new stuff you post
Thank you for any other magnificent article. Where else may just anyone get that kind of information in such a perfect approach of writing? I have a presentation next week, and I am at the look for such information.
This article is truly a nice one it helps new net users, who are wishing for blogging.
I am truly thankful to the owner of this site who has shared this wonderful article at at this place.
Pretty great post. I simply stumbled upon your blog and wanted to mention that I have really enjoyed browsing your blog posts. In any case I’ll be subscribing on your feed and I am hoping you write again soon!
I used to be recommended this blog via my cousin. I am not positive whether this submit is written through him as no one else recognise such detailed approximately my problem. You are amazing! Thank you!
Hi there friends, pleasant piece of writing and pleasant arguments commented here, I am truly enjoying by these.
Fantastic web site. A lot of useful information here. I’m sending it to a few buddies ans also sharing in delicious. And naturally, thank you on your effort!
There is definately a lot to know about this topic. I like all the points you made.
With havin so much content and articles do you ever run into any problems of plagorism or copyright violation? My website has a lot of completely unique content I’ve either created myself or outsourced but it appears a lot of it is popping it up all over the web without my agreement. Do you know any solutions to help protect against content from being ripped off? I’d certainly appreciate it.
Saved as a favorite, I like your web site!
Actually no matter if someone doesn’t know then its up to other viewers that they will help, so here it happens.
Quality posts is the main to be a focus for the people to pay a visit the web site, that’s what this web site is providing.
I enjoy what you guys are up too. This type of clever work and coverage! Keep up the awesome works guys I’ve incorporated you guys to blogroll.
Ridiculous quest there. What occurred after? Good luck!
Hey! Quick question that’s entirely off topic. Do you know how to make your site mobile friendly? My site looks weird when viewing from my iphone4. I’m trying to find a theme or plugin that might be able to correct this problem. If you have any suggestions, please share. With thanks!
I was very happy to find this site. I wanted to thank you for your time just for this wonderful read!! I definitely appreciated every little bit of it and I have you bookmarked to check out new stuff on your website.
Good day! This is my 1st comment here so I just wanted to give a quick shout out and tell you I genuinely enjoy reading through your articles. Can you suggest any other blogs/websites/forums that deal with the same subjects? Thanks!
I was recommended this website by my cousin. I am not sure whether this post is written by him as no one else know such detailed about my difficulty. You are wonderful! Thanks!
Can you tell us more about this? I’d love to find out more details.
Thanks for sharing your thoughts on %meta_keyword%. Regards
Write more, thats all I have to say. Literally, it seems as though you relied on the video to make your point. You clearly know what youre talking about, why waste your intelligence on just posting videos to your site when you could be giving us something enlightening to read?
Because the admin of this web site is working, no uncertainty very soon it will be well-known, due to its quality contents.
Hey there are using WordPress for your blog platform? I’m new to the blog world but I’m trying to get started and create my own. Do you need any coding knowledge to make your own blog? Any help would be greatly appreciated!
whoah this blog is magnificent i really like reading your articles. Stay up the good work! You recognize, a lot of people are hunting around for this info, you can help them greatly.
You’re so awesome! I don’t think I have read something like this before. So great to find somebody with a few original thoughts on this issue. Really.. thank you for starting this up. This website is something that’s needed on the web, someone with a little originality!
Fantastic goods from you, man. I’ve understand your stuff previous to and you’re just too fantastic. I really like what you’ve acquired here, really like what you’re stating and the way in which you say it. You make it entertaining and you still take care of to keep it sensible. I can not wait to read far more from you. This is actually a wonderful website.
Thanks for sharing your thoughts on %meta_keyword%. Regards
Pretty nice post. I just stumbled upon your blog and wanted to say that I have really enjoyed browsing your blog posts. In any case I’ll be subscribing to your feed and I hope you write again soon!
You’re so awesome! I don’t suppose I’ve read something like this before. So good to find someone with some unique thoughts on this topic. Really.. thank you for starting this up. This site is something that’s needed on the web, someone with some originality!
Hi there, I believe your site may be having browser compatibility issues. When I look at your site in Safari, it looks fine however, if opening in Internet Explorer, it has some overlapping issues. I just wanted to give you a quick heads up! Other than that, great blog!
No matter if some one searches for his necessary thing, thus he/she needs to be available that in detail, thus that thing is maintained over here.
Truly no matter if someone doesn’t understand then its up to other viewers that they will help, so here it happens.
Hi there, I found your website by the use of Google even as searching for a comparable matter, your web site got here up, it looks good. I have bookmarked it in my google bookmarks.
Hey are using WordPress for your blog platform? I’m new to the blog world but I’m trying to get started and create my own. Do you need any coding knowledge to make your own blog? Any help would be greatly appreciated!
Its like you read my mind! You seem to know so much about this, like you wrote the book in it or something. I think that you could do with some pics to drive the message home a bit, but other than that, this is wonderful blog. A great read. I’ll definitely be back.
I am truly pleased to read this webpage posts which includes lots of useful data, thanks for providing these information.
What’s up friends, how is everything, and what you desire to say regarding this post, in my view its in fact awesome in favor of me.
This is a good tip especially to those new to the blogosphere. Short but very accurate information Thanks for sharing this one. A must read article!
What a information of un-ambiguity and preserveness of precious experience concerning unexpected feelings.
Hey there! I’m at work browsing your blog from my new iphone 4! Just wanted to say I love reading your blog and look forward to all your posts! Keep up the great work!