As a starter take a look at

http://en.wikipedia.org/wiki/Whey

for some explanation.  I'm sure that others can point you to more 
complete, but I think the answer is that protein is one part of whey, 
and it can be isolated and removed. What's left is "deproteinized" whey 
which can be used for other things.  As far as allergic reactions to it, 
I would have no clear idea.

Eric

On 4/17/2009 09:47, Pamela Palmer wrote:
> Ok, I have a good one for you guys.
> Most of you that have been here a while know I am allergic to milk protein. Particularly whey, but casein sometimes gets me, too.
> Was reading an ingredient list the other day and was stopped short by what I didn't understand (needless to say I DID NOT buy the product)
> What is deproteinized whey? 
> I thought whey was basically milk protein. How do you "de-protein-ize" a protein? Will I still react the way I do to milk proteins? Am I allergic to that and do I really want to try to find out?
> Just thought I'd put it out there and see if anyone could enlighten me.
>
> Pammi Palmer
> Dairy protein allergic since 1991, milk free since 1993.
>
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