Dairy for children 'extends life' 乳制品可使儿童“延长寿命”
文章来源:未知 文章作者:meng 发布时间:2009-07-28 06:58 字体: [ ]  进入论坛
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Children who eat plenty of dairy foods such as milk and cheese can expect to live longer, a study suggests.

一项研究建议,经常使用牛奶、奶酪等乳制品的儿童可以更长寿。

Milk is a good source of <a href=calcium1" width="226" border="0" src="/upimg/090728/4_070923_1.jpg" />
Milk is a good source of calcium

Some 4,374 UK children from a 1930s study were traced 65 years later by researchers in Bristol and Queensland.

They found those who had had high dairy and calcium intakes2 as children had been protected against stroke and other causes of death, journal Heart reports.

Despite dairy containing artery4(动脉,干道) furring fat and cholesterol5(胆固醇), high consumption did not raise the heart disease risk.

The findings appear to back the practice of giving extra milk to schoolchildren.

Protective

The study looked at family diets and found higher intakes of both calcium and dairy, predominantly(优越地,卓越地) from milk, cut mortality by a quarter.

A higher daily intake3 of calcium, of at least 400mg as found in just over half a pint6 of milk, cut the chance of dying from stroke by as much as 60%.

These beneficial effects were seen at estimated intake levels similar to those currently recommended by experts.

Three servings of dairy foods - for example, a 200ml glass of milk, a pot of yogurt(酸奶酪) and a small piece of cheese - will provide all the calcium most people need each day.

Other factors may play a part - though researchers say they took into account that children with the highest dairy intakes came from wealthier families and ate better diets overall - but there is evidence that high calcium intake is good for blood pressure.

Balance

Prolonged(持续很久的) high blood pressure increases the risk of stroke.

Dairy consumption may also influence heart and circulation health through a hormone7 called insulin(胰岛素)-like growth factor 1 (IGF-1), say the study authors from the UK's University of Bristol and Australia's Queensland Institute of Medical Research.

In adults, high circulating levels of IGF-1 are linked with reduced cases of heart failure and heart disease deaths.

Joanne Murphy of The Stroke Association said: "This is an interesting study, but we need to take a further look to really assess the benefits of milk in reducing the chances of dying from stroke.

"In the meantime, we advise parents to opt8 for a diet rich in fruit and vegetables and low in saturated9(饱和的,渗透的) fat and salt for the overall health of their children."

June Davison, cardiac(心脏的) nurse for the British Heart Foundation said: "It is important to include dairy as part of a balanced diet from the early years.

"However, older children and adults should consume low-fat dairy products such as semi-skimmed, 1% or skimmed milk and low-fat yogurts, which will help keep saturated fat intake low to help protect the heart."

Studies investigating a link between cancer and dairy products have not given clear results. Some research shows an increase in the risk of developing cancer, and some shows a decrease.



点击收听单词发音收听单词发音  

1 calcium sNdzY     
n.钙(化学符号Ca)
参考例句:
  • We need calcium to make bones.我们需要钙来壮骨。
  • Calcium is found most abundantly in milk.奶含钙最丰富。
2 intakes 8ef0c0b97d557507433c00f72a6fc6e2     
吸入( intake的名词复数 ); (液体等)进入口; (一定时期内)进入或纳入的人数; (采煤)进风巷道
参考例句:
  • The Tornado jet fighter-bomber has two air intakes. 旋风式喷气轰炸机有两个空气入口。
  • The air intakes to the carburetors were filling up with freezing snow. 汽化器的进气道被积雪封住了。 来自英汉非文学 - 百科语料821
3 intake 44cyQ     
n.吸入,纳入;进气口,入口
参考例句:
  • Reduce your salt intake.减少盐的摄入量。
  • There was a horrified intake of breath from every child.所有的孩子都害怕地倒抽了一口凉气。
4 artery 5ekyE     
n.干线,要道;动脉
参考例句:
  • We couldn't feel the changes in the blood pressure within the artery.我们无法感觉到动脉血管内血压的变化。
  • The aorta is the largest artery in the body.主动脉是人体中的最大动脉。
5 cholesterol qrzzV     
n.(U)胆固醇
参考例句:
  • There is cholesterol in the cell of body.人体细胞里有胆固醇。
  • They are determining the serum-protein and cholesterol levels.他们正在测定血清蛋白和胆固醇的浓度。
6 pint 1NNxL     
n.品脱
参考例句:
  • I'll have a pint of beer and a packet of crisps, please.我要一品脱啤酒和一袋炸马铃薯片。
  • In the old days you could get a pint of beer for a shilling.从前,花一先令就可以买到一品脱啤酒。
7 hormone uyky3     
n.荷尔蒙,激素,内分泌
参考例句:
  • Hormone implants are used as growth boosters.激素植入物被用作生长辅助剂。
  • This hormone interacts closely with other hormones in the body.这种荷尔蒙与体內其他荷尔蒙紧密地相互作用。
8 opt a4Szv     
vi.选择,决定做某事
参考例句:
  • They opt for more holiday instead of more pay.他们选择了延长假期而不是增加工资。
  • Will individual schools be given the right to opt out of the local school authority?各个学校可能有权选择退出地方教育局吗?
9 saturated qjEzG3     
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
TAG标签: life children dairy
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