Question about legumes and PA

Posted on: Fri, 02/10/2006 - 12:01am
gabbytiger's picture
Joined: 12/08/2005 - 09:00

I am still trying to understand this crazy allergy! My DS is allergic to peanuts and soy. He had a hive reaction to something last week (BBQ sauce) and the only culprit I can pinpoint is perhaps the tamarind in the sauce (I now know that tamarind is a legume). I would like to have him tested for this at our next appointment as well as have him tested for chick pea (Christmas Eve reaction).

Here is the question--do you think he is "allergic" to these other legumes? Or does he have mild reactions because they are related to peanut? I am cautious with other legumes--in the past he has eaten green peas and kidney beans beautifully, but now I am getting gunshy of the legume family!

Any thoughts would be appreciated!

Posted on: Fri, 02/10/2006 - 1:11am
Peg541's picture
Joined: 12/29/2002 - 09:00

My son also has soy and peanuts on his list. We have avoided ALL legumes. Maybe out of fear but it has served us well.
He's 21 now and doing fine on his own at college.
My DH has a few food allergies undiagnosed. Last month I gave him garbanzo beans on his salad and he spent the rest of the night coughing and clearing his throat. I told him that is allergy. He refused Benadryl but now avoids them.
I find that recently I have developed intolerances to milk and soy. Soy gives me incredible gas, any form of soy.
I think DS is where our son got his FA's from.
So bottom line we avoid all legumes. I might be too careful but have seen anaphylaxis twice and that was too much.

Posted on: Fri, 02/10/2006 - 7:32am
momtotwokidz's picture
Joined: 10/02/2005 - 09:00

My son is allergic to soy and I think almost every bbq sauce I have read has soy in it (we avoid all soy including soy oil). I read in my peanut book that some BBQ has peanut butter added to thicken it up, so maybe it is an older bottle that did not have the new labeling yet? My son is also allergic to g. beans, a legume, but has not had any problenms to other legumes as of yet.

Posted on: Fri, 02/10/2006 - 8:30am
DRobbins's picture
Joined: 07/19/2001 - 09:00

I think lots of people here avoid commercially prepared barbeque sauce because every brand seems to be manufactured on the same equipment as products containing nuts. So you might have been seeing a reaction from cross-contamination, rather than a reaction to another legume.
And, of course, just because you have a peanut allergy doesn't mean that you can't also be allergic to something totally unrelated (things other than legumes). I certainly know of people allergic to garlic, onions and other spices, so it could even be something like that.
I hope you're able to narrow it down quickly.

Posted on: Fri, 02/10/2006 - 9:48am
mcmom's picture
Joined: 06/15/2004 - 09:00

gabby, how old is your son and how long have you known he was PA? before my son was disgnosed, he ate gren beans and peas all the time with no reaction. After his one and only expose to peanuts, he would break out or vomit whenever he had them. He tested positive for allergy to most legumes, even though he had eaten them OK before. The allergist said it wasn't uncommon for the PA to trigger other allergies.

Posted on: Sat, 02/11/2006 - 1:37am
gabbytiger's picture
Joined: 12/08/2005 - 09:00

Thanks everyone for your responses. My son is 19 months old and this is still realtively new to us so we are still muddling through! There is no soy or nuts in the sauce and when I called they said there was no risk of cross contamination with peanuts. I guess I thought it was okay because we have been eating it for awhile with no problems. I now know that things can change quickly!
I am keeping a food diary, but it seems hard to pinpoint certain things because my son has horrible eczema anyway. I will probably test him for legumes at our next allergy appointment.
I still feel confused about cross reactivity versus true allergy. His skin test was positive for soy, but the allergist said that happens because they are so closely related. We treat the soy as a true allergy. My son definitely reacted to chick peas--is that because he is also allergic separately to chick peas or is he allergic to chick peas because they are so closely related to peanuts? I am not even sure I am phrasing my question well!!!! I know I am splitting hairs, and the answer still doesn't affect my job to keep him as safe as possible--I am just trying to wrap my mind around all of it.
I appreciate all of your responses!

Posted on: Sat, 02/11/2006 - 1:39am
gabbytiger's picture
Joined: 12/08/2005 - 09:00

So, are all legumes off limits now (green beans, peas etc.)?

Posted on: Sat, 02/11/2006 - 2:07am
barb1123's picture
Joined: 04/08/2000 - 09:00

My son initially tested 0 for peanut. I fed him a lot of soy, beans and other legumes because I am a vegetarian and initially wanted him to be also. He was highly allergic from birth to many things and after about 3 months of legumes he started having severe reactions to all of them. Next RAST test his peanut had gone up to 4, despite not having any in his diet (I was very careful). His soy, etc. scores are very high and he hasn't been able to eat any legumes since he was about 18 months old (he's now 7) and his peanut has gone up to 6.
So, I would strongly suggest that anyone with a peanut allergy avoid all legumes but this is just our personal experience. It might not work the same for you, but why chance it. I suggest waiting till your child is older and their immune system more developed to give them legumes. I did this with fish (I didn't give him any fish until almost 4 years old and he can eat it with no problems despite fish being a highly allergenic food.

Posted on: Sat, 02/11/2006 - 2:25am
Lebovitz's picture
Joined: 08/28/2005 - 09:00

Hi, My son is allergic to many legumes. Of course, his RAST scores are extremely high so we have tried to avoid all legumes. (These scores were received just before the following incident.) A few months ago he had a flu virus which by itself would not have presented too much of a problem had it not been the vegetable soup he craved one evening! It took about ten days on prednisone with SVN support therapy from two hospital visits to get him back to "normal". Although anaphylactic to peanut, soy has been very difficult to eliminate when you have a teenager who does not always eat at home.

Posted on: Sat, 02/11/2006 - 2:28am
JacksonsMom's picture
Joined: 07/21/2002 - 09:00

My son is PA, sesame, soy, and TNA. He skin tested positive to all legumes : peas, soy, kidney beans, green beans, garbanzos, etc (all beans). However his cap RAST was negative for all of the beans except soy. I was told by our allergist to avoid all soy, but don't force the others. In other words, if he wants green beans, and they don't seem to bother him, fine.
She says that lots of PA people cross react to the legumes.
I basically just avoid them all right now. When he is older I may let him try green beans again, he used to really like them. But he always seems to have mystery eczema flare ups so its easier to avoid every possible trigger.
So to answer your question I think it is possible he is allergic to the legumes, because many people with PA are.
It is still kind of confusing to me. I really hate food allergies!!
Sorry to vent in your thread. Hope this helps. [img][/img]

Posted on: Sat, 02/11/2006 - 12:49pm
mcmom's picture
Joined: 06/15/2004 - 09:00

Quote:Originally posted by gabbytiger:
So, are all legumes off limits now (green beans, peas etc.)?[/b]
Yes. After his initial skin test, the doctor said to avoid all legumes - we finally had him Rast tested when he was five and he's allergic to peas, beans, chickpeas, lentils - so thank goodness we had been avoiding them!


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