My son is now almost 4.  He has always eaten happily from a wide range of food groups. We generally try to avoid feeding him (much) processed food, but since we travel a lot, it is inevitable that we also eat on the run. He was just under 12 months when he had his first reaction - to eating cream cheese. The effect was instantaneous and obvious: raised, red rashes on mouth, face, fingers, belly - anywhere that the food made contact. Other common allergens (like dairy, wheat, soy, nuts) clearly were no problem, so it only took another couple of incidents for us to figure out preservative 202 was the culprit. Since then we have mostly been able to avoid it, but it does crop up when we're not expecting it: like in some yoghurts (in NZ), margarines and so-called some 100% orange juices (the 100% claim is on the front of the bottle, but preservative 202 is listed in the ingredients). Again, the reaction is obvious - and although it causes some discomfort, the reaction doesn't seem to pose any obvious health risk.

As an aside, after spending some time this evening trying to research 202 allergies on the internet, I am surprised how very little information is available on it. Your website was one of the few to contain any information. Thanks for the tips about sorbates being also present in pharmaceutical products, since I had no idea about this. – Kate, by email (It is illegal to say 100% juice if there is a listed preservative! The ACCC has prosecuted several companies over that, see https://www.accc.gov.au/media-release/accc-receives-undertakings-from-orange-juice-producer. If you'd like me to act on it, let me know the name of the company. It is only through consumer complaints that change will occur.- S)

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