Had some certified gluten free ketchup, next morning had DH. Does this mean I'm super sensitive or something else?

[TheDHhurts]

I stopped eating all processed foods a while back, and have been DH-free since September. My food is sooo bland, so I figured I would get some FODY ketchup, which is certified gluten free (and low FODMAPS). Had a small amount with some homefries I made (not processed ... I cut up some potatoes and made them myself).

Next morning I see a couple bumps on my face, consistent with my DH.

I checked the ingredients list and it includes vinegar, sugar, modified corn starch, spices.

All I can figure is that I'm extremely sensitive to small amount of gluten, and that despite being certified gluten free there's inevitably small amounts in processed food.

Question for more experienced members of this board: do you think I'm right in this assumption, or could something else be at play?

[GFinDC]

Hmm, i have no experience with FODY ketchup myself or DH.  Some people do report getting flareups of DH from high iodine foods though.  So maybe that's it?  You could wait until the DH settles down and try just plain tomatoes and see if they cause a reaction.  That's a slow but fairly reliable way of testing food reactions.

[TheDHhurts]

14 hours ago, GFinDC said:

Hmm, i have no experience with FODY ketchup myself or DH.  Some people do report getting flareups of DH from high iodine foods though.  So maybe that's it?  You could wait until the DH settles down and try just plain tomatoes and see if they cause a reaction.  That's a slow but fairly reliable way of testing food reactions.

I don't have any problems with tomatoes -- I eat cherry tomatoes from time to time. I have a feeling that my reaction is to the vinegar and/or spices in this product.

I do tend to avoid processed foods altogether but figured a little certified gluten-free ketchup would be okay. Guess I was wrong!

[GFinDC]

Maybe it's worth an email to the maker to ask what's in the spices?  If there is something causing a reaction it would be good to know what it is.  Might save you some itching in the future.