Starting some solid foods late boosts allergy risk
Holding off on introducing certain foods in order to prevent children from becoming allergic to them may be counterproductive.
Researchers from Finland found that children introduced to certain foods later were more likely to become sensitized to them, increasing their risk of developing full-blown allergies.
The American Academy of Pediatrics and other authorities on child health recommend babies be breastfed exclusively up to six months of age, at which time parents can begin introducing solid food.
But there is evidence that this strategy may increase children’s likelihood of developing allergic disease, Dr. Bright Nwaru of the University of Tampere and colleagues note in the journal Pediatrics.
Concerns have also been raised that parents with allergies themselves may wait to introduce solid foods to their infants, which could “mask” the relationship between timing of food introduction and allergies, they point out.
To investigate, the researchers looked at 994 children participating in a study of diabetes prevention. All had been followed since infancy. The average duration of exclusive breastfeeding among the children was less than two months.
At age five, 17 percent had food allergies, while 23 percent were “sensitized” to certain inhaled allergens. Twelve percent were sensitized to cow’s milk, 9 percent to eggs, 5 percent to wheat, and 1 percent to fish.
Late introduction of some foods increased the likelihood that a child would be sensitized to that food by the time he or she was five years old, the researchers found, whether or not the child’s parents had allergies themselves.
The relationship was strongest for eggs introduced after 10.5 months, oats introduced after five months, and wheat introduced after six months. Late introduction of potatoes (after four months) and fish (after about eight months) increased children’s likelihood of developing sensitization to inhaled allergens.
The findings suggest that for children at risk of developing allergies, early introduction of foods may help prevent sensitization from occurring, Nwaru told Reuters Health.
However, he added in an email, “We cannot give any contrary recommendation against the current one by AAP and other health institutions at this point for parents trying to prevent allergies in their child. Rather, the next step may be to test this hypothesis in a randomized clinical trial setting.”
Exclusive breastfeeding for six months is still “the optimal form of feeding for the child,” Nwaru added, “but it seems not to be helpful in preventing allergies in children.”
SOURCE: Pediatrics, January 2010.
 |
 |
 |
 | ||
| RELATED STORIES: | ||
| Comments | [ + Post Your Own ] |
Now you're in the public comment zone. What follows is not Armenian Medical Network's stuff; it comes from other people and we don't vouch for it. A reminder: By using this Web site you agree to accept our Terms of Service. Click here to read the Rules of Engagement.
As a parent of an almost three year old with mild food allergies and eczema, I can say I followed the advice to delay some foods. Here we are with some food allergies when they haven’t run in my family before. I wonder what the “experts” will be recommending when my children have children?
|
|
We are pleased to let readers post comments about an article. Please increase the credibility of your post by including your full name and email.
All comments are reviewed by our editors before they are posted on the site. Just keep it clean, kids.
