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原帖由 web_passenger 于 2007-7-10 11:28 发表 5 X% @0 O! g- Q6 }5 R7 j3 ?; v
叶酸是一种极其重要的维生素,尽管有的复合维生素里已经包含了叶酸,但剂量可能并没有达到要求,因此每天单独服用一粒叶酸是北美医学界很推广的做法。记得曾经在COSTCO的药房边看到过加拿大政府的宣传小册子,推 ...
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看了这个网站, 我更推崇下面这两段:
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Eat a balanced diet
x; Z9 D, \' m! e9 h; eTaking a vitamin supplement does not reduce or replace the need for a healthy, well-balanced diet according to Canada's Food Guide to Healthy Eating . Good or excellent sources of Folic Acid include dark green vegetables (broccoli, spinach, peas and brussel sprouts), corn, dried peas, beans, lentils, oranges and orange juice. Whole grain breads and foods fortified with Folic Acid also provide significant amounts of the vitamin.9 T# K$ ^! s5 C. m* c2 v
3 a2 c+ `1 H) @% B# _Too much of a good thing?
; `6 @! K: z' H" D7 R1 Y. ?! {( iDo not take more than one daily dose of vitamin supplement as indicated on the product label. Increasing your dose of Folic Acid beyond 1 mg per day without the advice of a doctor is not recommended. In large doses some substances in multivitamins could actually do more harm than good. This is especially true of Vitamin A in the retinol form. Try to select a supplement with Vitamin A as beta-carotene rather than as retinol. This difference is indicated on the label.
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2 P& \9 h U8 M4 \! l/ G1 m' V实际上我从来都不是口服维生素片的拥蹙. 一个是我认为健康的饮食已经可以为我们身体提供足够的养分, 不需要另外补充, 另一个是有其它的研究表明, 维生素被单独抽离出来后远不及它在原有环境里有效. 比如摄取同样的钙,吃钙片就不如喝牛奶有效. 最后一点最重要, 所谓"过犹不及", 一二十年前许多被官方推荐的营养品和剂量今天都被证实是对身体有害的, 所以我对今天的这些健康建议也总是报将信将疑的态度. 我不是反对吃维生素, 而是认为每个人要根据自己的情况吃. 一个每天吃快餐, 基本不见太阳,不做运动的孕妇当然应该吃. 但是如果你有健康的饮食和起居习惯, 每天还能去室外活动活动,那就完全没必要迷恋维生素片.% ^- j. R0 ~: ~; k& x
# y* [+ V$ _6 E' F$ G/ A这是俺的个人看法, 欢迎探讨. |
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