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美国国家公共电台 NPR--The FDA proposes new targets to limit lead in baby food

时间:2023-10-30 05:32来源:互联网 提供网友:nan   字体: [ ]
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The FDA proposes new targets to limit lead in baby food

Transcript1

It's not possible to remove all traces of lead from the food supply, because the heavy metal is found throughout the environment and can be absorbed by plants. So traces are found in the vegetables, fruits and grains that are used to make baby food.

But as toxic2 metal exposure can be harmful to developing brains, the Food and Drug Administration is issuing new guidelines to reduce children's exposure to the lowest level possible.

The new FDA guidance calls for limiting lead concentrations in all processed foods intended for babies and children less than two years old. Lead concentrations should now be limited to 10 parts per billion in fruits, vegetables and meats packaged in baby food jars, pouches3, tubs and boxes. The target is 20 parts per billion for dry cereals.

The FDA estimates these lower levels could result in a 24 to 27% reduction in exposure to lead resulting in "long-term, meaningful and sustainable reductions in the exposure to this contaminant from these foods," according to a statement by FDA Commissioner4 Robert Califf.

"We know that the less amount of these metals in babies' bodies, the better," says Dr. Aaron Bernstein, a pediatrician at Boston Children's Hospital and a member of the American Academy of Pediatrics. So, he says the goal should be to minimize how much lead a child is exposed to.

"Parents need to recognize that foods have metals in them naturally in some cases," he says. So it's best "to feed your child a variety of foods to the extent that's possible." Some foods will have more lead than others and a varied5 diet is also good for nutrition — so following "good nutritional6 guidance will also reduce exposure to these metals," Bernstein says.

The American Academy of Pediatrics has several tips for parents on how to reduce children's exposure to heavy metals: Serve a variety of foods, read labels, switch up your infant cereals and check your water supply for heavy metals.

In addition offer toddlers and young children sliced or pureed fruit instead of fruit juice, because some fruit juices can contain concerning levels of heavy metals.

"Fruit juices can have as much, if not more of these very metals we're trying to minimize," Bernstein says. And he says juice is a "sugar hit" for kids, so nutritionally it's a good thing to avoid.

The FDA says there has already been a dramatic decline in lead exposure from foods since the mid-1980s. Lead was phased out of gasoline and paint decades ago and there's currently lots of federal funding to replace old water pipes that contain lead, pushed through partly in response to shocking stories of lead poisoning in places like Flint, Michigan.

Dr. Leonardo Trasande, a pediatrician at NYU Langone Health, says the FDA is moving in the right direction with these new targets, but we've known about these toxins7 for decades, he says.

"As much as this is a baby step forward in limiting toxic exposures for children's health, the FDA has been glacial in its pace of addressing newer and emerging contaminants," he says.

Chemicals such as phthalates which are used in packaging can find their way into food. Trasande says we need to know how these compounds may also be impacting children's health.


点击收听单词发音收听单词发音  

1 transcript JgpzUp     
n.抄本,誊本,副本,肄业证书
参考例句:
  • A transcript of the tapes was presented as evidence in court.一份录音带的文字本作为证据被呈交法庭。
  • They wouldn't let me have a transcript of the interview.他们拒绝给我一份采访的文字整理稿。
2 toxic inSwc     
adj.有毒的,因中毒引起的
参考例句:
  • The factory had accidentally released a quantity of toxic waste into the sea.这家工厂意外泄漏大量有毒废物到海中。
  • There is a risk that toxic chemicals might be blasted into the atmosphere.爆炸后有毒化学物质可能会进入大气层。
3 pouches 952990a5cdea03f7970c486d570c7d8e     
n.(放在衣袋里或连在腰带上的)小袋( pouch的名词复数 );(袋鼠等的)育儿袋;邮袋;(某些动物贮存食物的)颊袋
参考例句:
  • Pouches are a peculiarity of marsupials. 腹袋是有袋动物的特色。 来自《简明英汉词典》
  • Under my eyes the pouches were heavy. 我眼睛下的眼袋很深。 来自《简明英汉词典》
4 commissioner gq3zX     
n.(政府厅、局、处等部门)专员,长官,委员
参考例句:
  • The commissioner has issued a warrant for her arrest.专员发出了对她的逮捕令。
  • He was tapped for police commissioner.他被任命为警务处长。
5 varied giIw9     
adj.多样的,多变化的
参考例句:
  • The forms of art are many and varied.艺术的形式是多种多样的。
  • The hotel has a varied programme of nightly entertainment.宾馆有各种晚间娱乐活动。
6 nutritional 4HRxN     
adj.营养的,滋养的
参考例句:
  • A diet lacking in nutritional value will not keep a person healthy.缺乏营养价值的饮食不能维持人的健康。
  • The labels on food products give a lot of information about their nutritional content.食品上的标签提供很多关于营养成分的信息。
7 toxins 18c3f40d432ba8dc33bad8fb82873ea8     
n.毒素( toxin的名词复数 )
参考例句:
  • The seas have been used as a receptacle for a range of industrial toxins. 海洋成了各种有毒工业废料的大容器。
  • Most toxins are naturally excreted from the body. 大部分毒素被自然排出体外。 来自《简明英汉词典》
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