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Andie
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Topic: Conflicting research- preventin allergies Posted: 18 December 2008 at 9:29pm |
So I've looked into this a fair bit. The conflicting research about ALL things allergy-related is driving me nuts! What do I believe about preventing allergies (re: antenatal diet, maternal diet while BFing, starting solids)??? Delayed exposure can prevent an allergy appearing, sure, but then in countries where the diet is peanut-rich, milk is their biggest danger and peanut allergies unheard of. A peanut allergy may not be the most common here, but is typically the most dangerous for those who are allergic, and we have diets high in dairy (it's very rare in NZ to have anaphylaxis to dairy). I've read that the chances of having a child with an allergy are around 80% if that child has an allergic sibling already. But our Paediatrician's research points to around 5%. For this reason she won't apply for Neocate for this baby (due soon). I just don't know what to believe, and fear that only trial and error will show me what's what.
...If it'd avoided milk entirely during this pg, would this baby have Ella's same allergy? Possibly. Considering I've had the most insane peanut butter cravings for the last fortnight and caved to those recently, is this child going to suddenly develop a nut allergy? God forbid. And then there's the issue of allergy testing - since a first exposure won't trigger a reaction, if this baby's first exposure to allergens is his skin prick test, of course it'll come back completely negative, meaning whether he has an allergy or not, I'll find out when he first eats that food, in an uncontrolled environment. Not cool. I'm just so frustrated at not knowing what to do, at all the conflicting advice! How did others decide what lines to draw and where when it comes to maternal diet, etc?
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Andie
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*Lou*
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Posted: 18 December 2008 at 11:07pm |
Hi Andie
It's so hard isn't it! Everything out there seems conflicting and even the experts don't agree.
I have done a fair bit of research and this is what I am doing - for what it's worth . My DS is allergic to peanuts, treenuts, dairy, wheat, soy, eggs, corn and sunflower seeds.
No nuts, fish or seafood while pregnant. There is research to suggest that these do cross the placenta - apparently none of the other common allergns do. I am doing this despite DS not being allergic to fish.
At 28 weeks through to 6 months of breastfeeding, I intend on giving up dairy, eggs, soy, and wheat. These allergens can transfer through breastmilk.
The expert opinion (that I am following!) is to cease consuming these things 6 weeks before breastfeeding, but I am stopping a little earlier to get used to the diet. I am yet to decide whether to avoid traces as well.
I will also start taking a proboitic - 'Eczema Shield' ,also at 28 weeks ,and start giving it to bub as soon as he/she is born through 6 months. There was a study done recently by one of the NZ universities that found the use of a specific strain of proboitic (found in Eczema shield) significantly reduced the chance of allergies in subsequent children.
This is the advice of Dr Rohan Ameratunga, who is widely regarded as the top immunologist in the country. Apparently he has had 100 women follow this with only one incidence of allergy in subsequent children.
As far as stats to say how likely it is that your next child will be allergic, I think it depends more on the parents history of atopy. Eg in my family we have a strong history of hayfever, asthma, eczema, allergies to bees etc and in my husbands he was allergic to wheat and dairy as a child, gets hayfever, asthma and has a sister with eczema - so apparently we do have an 80-90% chance of another child with allergies. I think if the atopy is mainly on one side the chances are significantly reduced.
I am also going to try to track down a tin of neocate to take to the hospital - not sure how yet (as our subsidy number and prescription have long expired), but I would like it there just in case!
Hope this all makes sense - and sorry about the spelling. It is WAY past my bedtime.
Good luck with your decision. I know it's a hard one when there is so much different information out there!
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soph
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Posted: 18 December 2008 at 11:12pm |
That is difficult subjects. I know UK is carried out trial at the moment on introduce peanuts into diets from 6 months old to see that "prevent peanuts till 3 or 7" is wrong since this advice came into force, there has been dramatically increases of children with peanuts allergy. I can get link for you to read if you are interesting. But just remember these children is under medical control, don't attempt to try it at home....
In my experiences, knowing my OH is allergic to fish and we have now know our two youngest children is allergic to fish despite I haven't eating any fish for over 20 years!!!! Whether they will not have fish allergy if I ate fish while I was pregnant? Children's UK allergy specialist did warn me that my eldest is at risk of developing fish allergy later because my OH developed at 8-9 years old.
One of strong family history allergy is peanuts, we think OH's father was allergic to coconut and poss peanuts? even he wasn't fully aware of his allergy, my OH did had peanuts allergy as child but outgrown it and my OH's niece is anaphylatic to peanuts and sesame seeds (she is now 27 and still is) and nephew (now 22) is allergic to peanuts. So I did strictly avoid peanuts and any nuts during pregnancies, and we end up with eldest and youngest is ok with any nuts but middle child is allergic to peanuts and tree nuts. If I ate peanuts during pregnancies..I don't know...or is family history is too strong to make no different if I ate peanuts or not, or did I lower the risk or lower the level of allergy by avoid it?
By the way, for siblings with allergy issues...look at me, I got three children with food allergies, eh? how can be 5% (!!!) then I must be really unlucky mum then??? oh great
Personally I think it is down to how strong family history of food allergy?
HTH?
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Andie
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Posted: 19 December 2008 at 7:37am |
Wow, do I wish I knew where Ella's Doc got her estimate of the likelihood of an allergy recurring in our family from. Just considering the families I know from Allergy support group, this can't be right. You'd think a Paed would have access to the best info, wouldn't you.
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*Lou*
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Posted: 19 December 2008 at 8:37am |
I too worry that our family history will be too strong to avoid any allergies.
I am taking the view that I feel I have to do something to prevent this as I really don't want a repeat of my first year with DS. Even now at 19 weeks I kind of feel like I should be doing more...
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cuppatea
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Posted: 19 December 2008 at 9:47am |
Sorry I haven't read the other replies but our paed has me taking a probiotic for the last trimester and then to give the probiotic to the newbie once a day before breastfeeding. Apart from that I haven't been instructed to restrict anything from my diet even though Spencer is allergic to Dairy, Eggs and peanuts. I am just gonna look for signs of them causing a problem and eliminate from my diet if necessary. Not sure what will happen if breastfeeding fails again, I have kept some tins of neocate in case but obviously once they run out not sure what we would do without first trialling him on standard formula. Although I know how horrible that made Spencer feel so would be reluctant to put another child through that just to prove there is a problem.
Spencer's allergies are fairly mild though, although he has never actually eaten an egg or peanut so those haven't been tested but his skin prick test gave a mild reaction and the doc said most likely he would get sore tummy and bad skin flare up but nothing more serious.
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soph
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Posted: 19 December 2008 at 9:57am |
Best to look at your family history to see the pattern. In my family and my OH's family there are every single member of family that are blood-related to us (ie not BIL/SIL) is either got allergy, eczema or/and asthma..too strong to try and prevent allergy, eczema and asthma. I wish there is gene research to see how to prevent my children passing onto their children, I think that is best outcome for my situation rather than try to avoid it during pregnancy, as from my experiences, didn't work....
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Maya
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Posted: 19 December 2008 at 8:39pm |
I never had to trial the gremlins on dairy Cuppatea. I arranged a tin of Neocate before they were born via our paed who had said that they *must* be dairy free coz of the family history and when the breastfeeding didn't work out I started them on that and he arranged a funding number for them. The fact that Mercedes had already been diagnosed with reflux by that stage helped as it was further evidence of a dairy intolerance/allergy.
They are pretty good evidence that a total avoidance diet can be successful. They were 100% dairy, egg, peanut and soy free until 10 months and wheat free until 8 mths. They were tested then and all the tests were negative so we introduced dairy slowly, followed by egg etc. and were successful. They both do still have atopy - Mercedes gets eczema and Sienna has peanut anaphalaxis, but they managed to avoid developing milk, egg and soy allergies like Maya had. I'm convinced her issues can be traced back to the cows milk formula she had at 3 weeks when I had mastitis. She never had it again till 5 mths then suddenly reacted. If she hadn't had that exposure at 3 weeks her immune system might have been better developed and she might have never become allergic.
I've thrown caution to the wind with lil miss tho, and so far my gamble is paying off. I didn't avoid anything during pregnancy and I haven't restricted my diet whilst breastfeeding. I did cut out chocolate and caffeine for a brief period but it had no impact on her. She does have reflux but it's well controlled and she's showing no other signs of atopy. I'll be cautious when I introduce solids to her, of course, but I probably won't have her routinely skin prick tested at 10 mths like I did with the gremlins.
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Maya Grace (28/02/03)
(02/01/06)
The Gremlins:Sienna Marie & Mercedes Kailah (14/10/06)
Lil miss:Chiara Louise Chloe (09/07/08)
Her ladyship:Rosalia Sophie Anais (18/06/12)
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busymum
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Posted: 19 December 2008 at 8:53pm |
I have looked into this also Andie, but from an intolerance POV not allergy. The advice out there is still conflicting but it seems that food should be introduced at around the 6m mark as usual, as too early or too late can both increase chances of reacting in later life. But there's also the gene factor, meaning that my kids have every chance of getting it anyway - even this bub who has had only traces of gluten since conception.
Unfortunately I think it's one of those "out of our hands" things and we just have to watch for symptoms etc as before. Only this time around (for you), you will have a far better idea of what has hit, if it does. I have sympathy, you must be so paranoid! But (hopefully I'm not too insensitive here) I think you will be far better aware and equipped to deal with an allergy if you did come up against it again. I hope for you guys' sakes that there is no allergy but that if there is, it's the same type as Ella's (ie dairy and not wheat or anything else).
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ElfsMum
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Posted: 19 December 2008 at 9:13pm |
Andie I'm with you....:(I am not sure what to think either..E is on a the no food diet..just meat fruit and vege and rice till one..and every second person tells me that that isn't the way to do it..and now I'm pregnant again ?what to do..I avoided nuts last time anyway (not hard as I can eat peanut butter) an just avoided most things with nuts...actually i did have a few snickers?
so I don't know what to do..restrict..not restrict...should E be restricted..not restricted? Obviously I'm taking paed's advice but I just wonder...so sorry I can't help but I am in the same boat(though E's allergies aren't as bad as Ella's...
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cuppatea
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Posted: 20 December 2008 at 12:20pm |
That's good to know Emma, I've kept about 10 tins as Spencer is now on the toddler one so if baby needs top ups or we need to wean we have a bit to get us buy until we see the paed.
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Maya
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Posted: 20 December 2008 at 8:13pm |
I did the same with lil miss, kept a few on hand but I gave them away the other day coz having gotten this far without her needing it we should be fine to keep the breastfeeding going till we challenge her with dairy later on.
Intolerances are a whole different kettle of fish Teresa coz they don't involve immune system reactions. In babies the gut is permeable and things are absorbed into the bloodstream which can cause the immune system to respond as an allergy. But intolerances tend to build up over a period of time as a result of the offending food, for example one slice of bread might be fine, two slices might be pushing it and three cause you to become symptomatic. I don't know what this means as far as prenatal avoidance goes tho.
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Maya Grace (28/02/03)
(02/01/06)
The Gremlins:Sienna Marie & Mercedes Kailah (14/10/06)
Lil miss:Chiara Louise Chloe (09/07/08)
Her ladyship:Rosalia Sophie Anais (18/06/12)
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Maya
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Posted: 20 December 2008 at 8:16pm |
Oh and I'm not subscribing to the new Plunket guidelines that suggest that dairy etc. be introduced regardless of family history. Yes there is research that suggests that early sensitisation can prevent allergies developing, but there is also research that says that avoidance of sensitisation until after 12 months can be beneficial and I'd rather err on the side of caution. At any rate lil miss is being exposed to traces of dairy/egg/etc. proteins thru my breastmilk so that will be sensitising her tyo a small degree.
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Maya Grace (28/02/03)
(02/01/06)
The Gremlins:Sienna Marie & Mercedes Kailah (14/10/06)
Lil miss:Chiara Louise Chloe (09/07/08)
Her ladyship:Rosalia Sophie Anais (18/06/12)
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busymum
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Posted: 23 December 2008 at 8:23pm |
Emma - yea I know there are differences but avoiding the susceptibility to the allergy/intolerance I'm guessing probably falls within certain guidelines? It's certainly something I have been thinking about, particularly as I have had no gluten (intentionally that is) throughout this whole pregnancy - and then for bf as well.
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soph
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Posted: 15 January 2009 at 5:04pm |
Peanuts, I know there is new guidelines that everyone now been advise to continue eating peanuts during pregnancy even if you got history of asthma, eczema or/and allergy.
Has anyone with very strong family history of peanuts and tree nuts allergy continue to eating peanuts while pregnancy? and outcome?
Edited by soph
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