(here's the entire article. I don't know how long CTV is going to keep it up nor do I know if everyone can get to it)http://www.ctv.ca/servlet/ArticleNew...hub=TopStories
Vitamins may give kids asthma, allergies: study
CTV.ca News Staff
A new pediatric study has discovered a possible link between infants taking multivitamin supplements and developing asthma and food allergies.
The study of 8,000 infants found an association between early infant multivitamin intake and asthma among black infants, as well as a link between early infant multivitamin intake and food allergies in formula-fed infants.
"We are taking about allergies with an immediate reaction -- like hives, throat closure and drop in blood pressure," said Dr. Joshua Milner of the Children's National Medical Center in Washington.
What causes the link is still unknown.
Dr. Glenn Berall of North York General Hospital says that children should only be given multivitamins for medical reasons and that healthy children should be able to get all the vitamins they need from a well-balanced diet. He also recommends breast feeding over formula.
The report used data gathered from two government studies from the National Center for Health statistics that examined mothers and infants in 1988 and 1991.
The study reported that more than half of all U.S. infants are being fed multivitamins, often added to feeding formula.
Animal testing cited in the study show that some vitamins might cause cell changes that can increase the chances of allergic responses in infants as they encounter antigens, which are foreign substances that can stimulate an immune response when introduced into the body.
The study cited a number of different explanations for why black children have higher rates of asthma -- such as communication issues between parents and their doctors -- and recommended further research into the issue.
The report also cited factors in increased rates of asthma:
·having a smoker in the household;
·premature birth (37 weeks or less);
·no history of breastfeeding;
Factors cited in increased rates of food allergies include:
·higher levels of education;
·no history of breastfeeding
The report from the Children's National Medical Center in Washington was published in the July issue of Pediatrics, the journal of the American Academy of Pediatrics.