Anyone do food allergy testing?

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tjf
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Date Joined Dec 2005
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   Posted 6/22/2007 11:48 AM (GMT -7)   
Hey guys! Over from UC board. I do have IBS in addition to UC (oh yes lucky me..ha ha). Anyway does anyone have any thoughts on food allergy testing. i'm almost 100% certain I am lactose intolerant. For example...I had a frosty last night (ah my favorite) and I have tons of d today. I tend to see a direct correlation b/w milk products and d the next day (I use lactaid milk w/ my cereal). Anyway I know what my problem foods are (obviously milk, tomatos, fried food, etc). But I was wondering if it was worth it to get allergy tested? Thanks!
Tabitha
5mg pred whoo hoo!, 100mg Azathioprine, 2 Fibercon, Multivitamin, Colazal-9 a day, acidopholis pearls

dbab
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Date Joined Jan 2004
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   Posted 6/22/2007 12:01 PM (GMT -7)   
Hi Tabitha,

If you notice a problem with lactose then you can experiment yourself. Maybe drink soy milk instead of regular milk or even almond milk which I heard is a treat. You can cut out lactose completely and if your symptoms improve it may give you an answer. The problem with food allergy tests is they have a high inaccuracy record so you may get a false negative. It may be interesting though if you want to see what it says.

I'm sorry you have to deal with both UC and IBS. I was told last year that I had UC because I had ulceration and inflammation in my colon however that has cleared up totally and my doc has said it was a flukish thing (ideopathic) that he is now stating was caused by my UCTD attacking my intestines. Colitis is horrible and I feel for you.
"Des"
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Dx: IBS 1989, Diverticulosis 2004, Idiopathic Acute Colitis 2006, UCTD 2007
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Keriamon
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   Posted 6/22/2007 2:58 PM (GMT -7)   
It could also be a problem with too much fat. If you don't get D after drinking skim milk or eating low-fat yogurt, then fat's likely the culprit. But it could easily be lactose intolerance as well.

Lactose intolerance isn't an actual allergy, so that won't show up on a test anyways. I daresay you're not allergic to tomatoes either. Unfortunately there's a big medical differnence between your guts not tolerating somthing and actually being allergic to it. Unfortunate because the only way to figure out if you're intolerant is to do the elimination diet one food group at a time.

dbab
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Date Joined Jan 2004
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   Posted 6/22/2007 5:20 PM (GMT -7)   
There are 3 different tests that they can do to test for lactose intolerance. They are the lactose tolerance test, the hydrogen breath test, and the stool acidity test.
"Des"
Co-Moderator ~ IBS Forum
Co-Moderator ~ Lupus Forum 
Dx: IBS 1989, Diverticulosis 2004, Idiopathic Acute Colitis 2006, UCTD 2007
Meds: Plaquenil 400mg, Chlorzoxazone 500mg, Lyrica 50mg, Protonix 40mg, Naproxen 1000mg, Klonopin 2mg/day (tapering to PRN), Miralax 17g, Supplements


http://www.healingwell.com/donate


tjf
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Date Joined Dec 2005
Total Posts : 3238
   Posted 6/22/2007 5:44 PM (GMT -7)   
Thanks guys! I figure it can't hurt to run it by my GI next time I'm there. I appreciate the help.
Tabitha
5mg pred whoo hoo!, 100mg Azathioprine, 2 Fibercon, Multivitamin, Colazal-9 a day, acidopholis pearls

Sarita
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Date Joined Mar 2005
Total Posts : 2486
   Posted 6/22/2007 5:56 PM (GMT -7)   

I've done some research on food allergy testing and had some testing done a couple of years back.  With a few exceptions, I don't believe these tests are very accurate.  The specificity is pretty good but the sensitivity is not (i.e., if the test is positive, there's a good chance the allergy is present; if the test is negative, there's still a chance the person may have an allergic reaction).  For instance, not everyone with lactose intolerance will have a positive hydrogen breath test, but some will; some people with gluten intolerance will test negative for celiac disease but find improvement with a gluten-free diet.

I think the trick is to try elimination diets, which are grueling, but are the best indicator of what you can/cannot eat.  If you find yourself better on a 2-week trial of no lactose-containing foods, it will give you a good idea on your sensitivity to lactose.  But you have to very carefully read labels!

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