2007年VOA标准英语-Diet High in Fat, Low in Carbohydrates Shown In

By Melinda Smith
Washington, DC
24 January 2007
 
watch Diet report

 
Trying to lose weight can be challenging and confusing, because there are so many different diet plans competing for attention.  Low fat, or low carbohydrates¹, or high fiber²?  It's hard to know which diet is most effective, especially when each one promises the best results.  One of the most popular, known as the Atkins diet, calls for strict controls on consumption of carbohydrates, such as bread, rice, pasta and starchy vegetables.  The Atkins plan claims success even for those whose diet is high in fat, but a recent study indicates it is no more effective than a low-fat weight-loss diet. 

Researchers at the Harvard School of Public Health in Cambridge, Massachusetts studied the eating habits of 83,000 nurses for 20 years.  It turns out those nurses on a low-carbohydrate diet lost no more weight than those on low-fat diets.

Dr. Lori Mosca of New York Presbyterian Hospital in New York City explains why too much bread and pasta is just as bad as too much cheese and meat. "Too many carbohydrates can lead to spikes³ in blood sugar levels which, over time, may contribute to the development of diabetes⁴ and heart disease."

The researchers say the most effective diets cut back on carbohydrates and saturated⁵ fats, while adding unsaturated fats.  Saturated fats are derived⁶ from animals, such as meat, eggs or dairy products; unsaturated fats come from vegetables and plants. 

Dr. Mosca says moderation is the key element. "There have been a lot of conflicting messages about diet and a lot of confusion about what to eat.  This study really brings us back to the basics."

So what do the experts say will put us on the path to good health?  They recommend a diet that includes nuts and seeds, avocados and olive oil, plenty of fruits and vegetables, as well as lean fish and meat.  By sticking to the fundamentals, they say, dieters can cut their risk of heart disease by 30 percent.

1 carbohydrates   

n.碳水化合物，糖类( carbohydrate的名词复数 )；淀粉质或糖类食物

参考例句：

• The plant uses the carbohydrates to make cellulose. 植物用碳水化合物制造纤维素。 来自《简明英汉词典》
• All carbohydrates originate from plants. 所有的碳水化合物均来自植物。 来自辞典例句

2 fiber   

n.纤维，纤维质

参考例句：

• The basic structural unit of yarn is the fiber.纤维是纱的基本结构单元。
• The material must be free of fiber clumps.这种材料必须无纤维块。

3 spikes   

n.穗( spike的名词复数 )；跑鞋；（防滑）鞋钉；尖状物v.加烈酒于( spike的第三人称单数 )；偷偷地给某人的饮料加入（更多）酒精（ 或药物）；把尖状物钉入；打乱某人的计划

参考例句：

• a row of iron spikes on a wall 墙头的一排尖铁
• There is a row of spikes on top of the prison wall to prevent the prisoners escaping. 监狱墙头装有一排尖钉，以防犯人逃跑。 来自《简明英汉词典》

4 diabetes   

n.糖尿病

参考例句：

• In case of diabetes, physicians advise against the use of sugar.对于糖尿病患者，医生告诫他们不要吃糖。
• Diabetes is caused by a fault in the insulin production of the body.糖尿病是由体內胰岛素分泌失调引起的。

5 saturated   

a.饱和的，充满的

参考例句：

• The continuous rain had saturated the soil. 连绵不断的雨把土地淋了个透。
• a saturated solution of sodium chloride 氯化钠饱和溶液

6 derived   

vi.起源；由来；衍生；导出v.得到( derive的过去式和过去分词 )；（从…中）得到获得；源于；（从…中）提取

参考例句：

• Many English words are derived from Latin and Greek. 英语很多词源出于拉丁文和希腊文。 来自《简明英汉词典》
• He derived his enthusiasm for literature from his father. 他对文学的爱好是受他父亲的影响。 来自《简明英汉词典》