<<Disclaimer:  Verify this information before applying it to your situation.>>

While tese are derivatives of fats carbohydrate chains may be used a
binding substance in their preparation. and this needs to be checked out
with the manufacturer.
Canned vegetables are not desirable in any ones diet because there is
loss of the vitamins in the canning process and often there may be a lot
of salt.  fresh vegetables are much preferable for many reasons including
the relativly safety for celiacs.
Not Medical advice
Joe murray
University of iowa