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[report整理] SENEWS-2010-03-17

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This is the VOA special English health report.
Reseachers say  American children now eat an average of 3 snack a day between meals.A study found that those snacks add up to almost 1/3 of all the daily calory eaten by children.And those extra calories can explain the rise in overweighted children in United States.T
he study was done at the university of North Carolaina at Charp Hill.The reseachers started the diet throuht 31 thould chilren ages 2 to 18 over a 30 years period.They found that snacking was increased since 1970s.And what kinds of snack was increased the most?soften high fat foods like chips.The study also found greater  snacking on cake,cookie and other trays in the past generation saved after dinner.
The study is in the journeyof health affairs.Professer Bob Whiskey was the lead of investigators.He says parents should limits snack to 1 a day for children age  3 or older.He also adviced parents and care givers to provide health snacks like foods and vegetables.Professor Bob Whiskey says the American schools also need to improve their nutrition.For example,school may have vending machine offer what many persons called "junk food".There has been a push for schools to provide more heathy snacks and more lunch choices and less sugary drinks.
Earlier this month Coca Cola said it would stop selling sugary drinks in American schools unless parents required them.Its competitor Pepsi just announced that they would stop selling sugered dirnks to schools worldwild.America's top pulic health officer wants to see more changes like this.
Surgeon General Regina Ben recently sopke to law maker about making health food more available."The growing consistence agrees that we as a nation need recreate our community and enviorment what are the health choices,are the easy choices and are the affordable choices".
Agriculture Secretary Tom  who has said about his own child who struggles with the weight agrees about the need "we need do a much better job,make sure what is in the vending machines is consistence we think it this the time is come for standards".
First lady Machial Obama was leading a campaign to fight child obesity.Public health offically reported in Janary that about 17% of American children are obviously overweighted.
And that is the VOA special English heath report.written by C- Weaver. For more healthy news and to comment on our stories visist us at voaspecialenglish.com. I'm Steve Ember.
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