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Thanks so much for all of your replies, it is so nice to hear from so many
folks with experience!

Some folks thought that a diagnosis was worth it.

Some thought it wasn't if he does so much better on a GF diet, why make him
go through that?

The concensus was that at LEAST 6 wks is necessary for a gluten challenge,
but that even then it might not show positive.

Lots of folks replied explaining the difference between allergies and celiac
to me.  And that a prick test will not show celiac. I guess I did a really
bad job explaining myself.  I was hoping that he had an allergy, but when it
didnt show up on the prick test, that what convinced me that he probably has
CD. Because I know that CD doesn't show up, but that he still reacts so
stongly, that is why I ask if I still needed to challenge him and get a
biopsy or blood test diagnosis, or if that in itself was a good enough
"test".  Also, is there any other reason why he would react to wheat so
strongly and not have a histamine reaction -  other than Celiac??

I have biopsy diagnosed celiac.

He does have various other allergies and intolerances, most of which I hope
will clear up when his system is totally clear of gluten (turns out that the
cereal does use a barley derived malt).  He hasn't pooped in a full day
since I took him off of it (which is a miracle for this ki

Here is one more question:

What is the difference between a gluten intolerance and celiac?  Is there
one?

Thanks, Emily

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