評論
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Are there foods that could be called super foods?
世界上是否存在超級食物呢?
Some advertising suggests certain foods or ingredients
一些廣告中稱，有些事物中含有
have an extra special health benefit.
對人體健康極其有益的物質
This presentation will discuss what types of food
本講我們就來看看哪些食物可以
could be classified as "super" and what benefits
稱為超級食物，它們又能從哪些
they can contribute to a healthy lifestyle.
方面促進人體健康呢?
When you think of super foods, what comes to mind?
說到超級食物，首先涌入你腦海的是什么?
Super foods are everywhere.
到處都是超級食物
There are over 100 recognized super foods.
經過認定的超級食物超過了一百種
The title "super foods" includes a wide variety
超級食物包括很多種類的
of foods including fruits, vegetables, grains,
水果，蔬菜和谷類
and much more. I'm going to share with you some
除此之外，我要告訴大家一些常見的
common super foods and the benefits of incorporating
超級食物以及在飲食中添加這些
these foods into a balanced diet.
食物，對身體會帶來哪些好處
Let's talk about what super foods are. It is important
我們首先來看什么是超級食物
to note that there is no official definition for
關于超級食物，并沒有一個官方定義
super foods. If you Google "super foods",
如果你在網上搜索"超級食物"
you will find hundreds of foods that in reality
你會看到幾百種食物，而它們實際上或許
may or may not be a super food. A general definition
與超級食物并沒有關系，超級食物的
of a super food is one that provides health benefits
一個概括性的定義就是，能夠提供常規
beyond basic nutrition, improves overall health,
營養之外的營養物質，提高身體機能
and helps prevent disease. Super foods are also
能夠預防疾病的食物，超級食物通常
usually nutrient-rich and contain
富含營養物質
high amounts of antioxidants.
具有極強的抗氧化功能
Recently, super foods have become popular.
最近超級食物十分盛行
Many Americans are interested in the effects of their
越來越多的美國人開始關注自己的
diet on their health and look for foods and beverages
飲食和健康，并且開始尋找
with added health benefits. Many consumers may be
對健康有益的食品和飲品，很多消費者
seeking more convenient ways to gain health benefits
或許都在尋找便捷的方法來通過飲食
in their diets. And super foods have also been getting
保持身體健康，除此之外，超級食物
a lot of media attention recently from T.V.
近期在也深受媒體和電視的關注
shows like Oprah to magazine articles and headlines
包括奧普拉脫口秀，雜志和報紙都十分
in the news. This focus on certain foods may
關注超級食物，但是人們對某些食物的
lead to confusion about what makes one
過度關注也不禁使人們困惑，到底是
food super and another one not so super.
什么使一種食物成為超級食物呢?
There are some problems with the concept of
關于超級食物的概念有存在一些問題
super foods. Some foods may be naturally nutrient rich
一些食物可能本身就存在極高的營養價值
while others are enhanced with added nutrients through
而另一些則通過制成加強型食品而增加
enrichment or fortification. This may be of concern
營養物質含量，因此，有些原本不健康的飲食
if unhealthy food choices are promoted as super foods
由于添加了維生素和礦物質成分而被
because they have been enriched with vitamins and
宣傳為超級食物
minerals for example. Foods that are enriched or
那些加強型食物或許
fortified may contain these healthy ingredients,
包含很多對健康有益的營養物質
but consumers need to be cautious of the other
但是我們必須十分小心，因為其中
ingredients in these products. Some may contain
還可能添加有其他物質，其中一些可能
high amounts of sugar or fat. Another problem with
含有較多的糖和脂肪，超級食物的
super foods is that some of the beneficial ingredients
另一個問題就是，一些有益的成分
may not be well absorbed in the ways that they are
可能并不能被很好地吸收，其實際吸收效果
marketed to consumers. The bioavailability of a
與宣傳中的有差異，一種營養物質的吸收
nutrient can be influenced by the chemical form in
與其制作形式，以及其他因素
which it appears in the diet and by the presence of
都具有十分密切的關系
other factors in the food that may enhance
這些因素都有可能
or depress absorption and utilization.
增強或者抑制營養物質的吸收和利用
Let's turn our attention now to learning about
下面我們來看一些
some foods that have good nutritional value and
具有極高營養價值的食物
could be called super foods.
它們可以被稱為超級食物
Because of the healthful benefits of these foods,
因為它們擁有極高的營養價值
you should consider selecting a wide variety of these
在選擇飲食搭配上，你必須小心
foods for your diet. I will present some helpful
選擇將多種食物搭配起來
information about each of the
下面我要給大家依次講解
foods shown here on this slide.
幻燈片上的食物
