評論
打印
The educational materials presented here
今天展示的教育材料
were developed by students and faculty
是由愛荷華州立大學營養(yǎng)學
of the department of food science and human nutrition
和人體營養(yǎng)學系的
at Iowa State University.
學生和老師提供的
Funding for this project was provided by grants
該項目的資金由
from the American Cancer Society Mid West
美國中西部地區(qū)癌癥協(xié)會
and the Lance Armstrong Foundation.
及蘭斯，阿姆斯斯壯基金會提供
The materials are intended for educational use
這些材料僅用于教學
and are not meant to provide medical advice.
并非用以提供醫(yī)療指導
We welcome your feedback about these materials.
歡迎大家對這些材料做出反饋
Please use the evaluation survey link on the homepage
請用主頁上提供的調查評價鏈接
to provide your comments and suggestions.
提交你們的評論和建議
The markets are full of dietary supplements
市場上充斥著很多補品
and it is difficult to know which, if any, might be useful
很難辨別哪個也許有用
to promote health, resist disease or improve wellbeing.
可以促進人體健康，抵御疾病，提高身體素質
This presentation will outline the basic information
今天的演講會提供
about dietary supplements
有關補品的基本信息
and provide helpful information
也會提供一些實用的信息
about their contributions to a healthy lifestyle.
說明補品對健康生活方式的貢獻
A supplement is intended to supplement the diet.
補品的用途在于補充膳食
The main feature of a supplement
一種補品的主要特征是
is that it is very different from a food.
它與食物大不相同
It contains one or more ingredients such as a vitamin,
它含有一種或多種營養(yǎng)成分，例如維他命
mineral, botanicals or herbs and is intended to
礦物質，草本植物，草藥等，它是用來
be taken orally in pill, capsule, liquid or tablet form.
口服的，有丸劑，膠囊劑，液體劑或者片劑等
Supplements are labeled as supplements
補品一般都會在其商標說明上注明
on the front panel. In the picture shown here
從這張圖片大家可以看到
you can see that this particular vitamin supplement
這種補品
included calcium and vitamin D
含有鈣和維他命D
which are 2 ingredients and it is taken orally
這兩種營養(yǎng)成分，服用方法是口服
in the form of a tablet and it is labeled as
補品是片劑形式，商標上注明了
a supplement on the front panel.
它是一種補品
Vitamin and mineral supplements
維他命和礦物質補品
have been available to consumers for over 100 years.
消費者已經使用了100多年了
These products are typically mixtures
這些補品主要是混合物
of known essential nutrients in quantities
由一些大家熟知的常規(guī)營養(yǎng)物構成
defined by the national academy of sciences
由美國國家科學院的院士們命名
and the recommended dietary allowances
還有推薦的膳食營養(yǎng)素供應量
or the RDA. The label on these supplements
或被稱為RDA,這些補品上的商標
defines the percent of the RDA that is met by
都注明了RDA的百分比，一般是
1 of the dose of the product. In general
服用補品的一劑，一般來說
vitamin and mineral supplements are safe
服用維他命和礦物質補品是安全的
to be consumed when they contain around 100%
條件是它們含有大概100%的RDA
of the RDA. Supplements with much more than
補品RDA超過這個值的
the RDA, 200% or greater, are not necessary
比如達到200%或者更高，就不必要了
and may cause toxicity.
這也許還會產生毒性
So when are vitamin supplements advisable?
所以什么時候服用維他命補品比較合適呢
Vitamin B12 supplements are advisable for individuals
維他命B12適用于那些
over the age of 50 who have trouble
50歲以上，并且很難
absorbing this vitamin naturally.
自然吸收這種維他命的人
Folic acid supplements may be advisable
維生素B適用于
to women who may become pregnant
快要懷孕
or are pregnant in order to decrease the likelihood
或已經懷孕的女性，這樣可以降低懷有
of having a baby with neural tube defects.
一個神經管畸形嬰兒的風險
Vitamin D supplements are also advisable to individuals
維他命D適用于
who do not get enough exposure to the sun
那些很少曬太陽
and who do not get enough vitamin D
而且沒有吸收足夠維他命D的人
through fortified product. Calcium is sometimes
盡管他們食用了富含維他命D的食物，鈣比較
also advised for bone health in mostly women.
適用于大多數(shù)女性，可以促進骨骼健康
Herbal supplements are different than vitamin
草藥補品與維他命
and mineral supplements because there are no
和礦物質不同，因為沒有
known requirements for herbal compounds
標準規(guī)定服用哪些草藥補品
to maintain health. This means that
以保持身體健康，也就是說
there is no RDA for herbal ingredients.
草藥補品沒有規(guī)定的RDA
Herbal supplements are mixed with compounds
草藥補品是由化合物混制的
derived from plants and algae
這些化合物提取自植物和藻類
that some supplements may also contain ingredients
這些植物和藻類也許還含有
from animal sources such as fish oil
動物身上如魚油
or pancreatic extracts.
或胰腺中的養(yǎng)分
Our understanding of herbal supplements
我們對草藥補品的認識
is derived form traditional medicine practices
來自多年來很多
of many civilizations for many, many years.
文明的傳統(tǒng)醫(yī)學
In these cultures healers use
在這些文化中，醫(yī)生使用
naturally occurring products to treat ailments
天然藥物來醫(yī)治疾病
and out of these practices modern medicine arose.
現(xiàn)代醫(yī)藥就來自這些實踐
All dietary supplements sold in the US
美國銷售的所有補品
must comply with strict labeling laws.
必須嚴格遵守商標法
On the front panel the label must include
商標必須附有
a statement of identity indicating the composition
補品合成物的說明
of the product and the net quality of contents.
以及各成分的凈重
The label also must contain a list of ingredients
商標還應包括某一種補品的成分
in a particular supplement and other ingredients
并且降序標出
in descending order of pre dominance
其他主要營養(yǎng)成分
and by common name or proprietary blend.
用其通用名稱或者專利合成名
