Probably one of the added flavours -
https://www.fedup.com.au/factsheets/additive-and-natural-chemical-factsheets/621-msg-msg-boosters-flavour-enhancers-and-natural-glutamates
Adding to consumer woes, in Australia there is a five per cent labelling loophole that essentially says if an ingredient - for example, a flavour such as spice extract or salt - forms less than five per cent of a product, an additive in that ingredient does not have to be listed. In one such case, Carolyn wrote to the Food Intolerance Network about her family's reaction to a quality fresh 'homemade-style' chicken and leek family pie. She reported:
"I was hit with severe tiredness, heavy eyes, thirst and unusual (for me) bad mood within one hour of eating it that lasted over 24 hours. My breastfed 10-month old baby had a bit of an unsettled night, bit of a cough and some red blotchy rash on her torso."
When questioned, the manufacturer revealed that the salt was actually chicken salt, which can contains large quantities of MSG and ribonucleotides. These additives are not permitted in foods intended for babies up to the age of 12 months, but the dose in the mother's breastmilk was obviously enough to cause reactions.
You're eating an insecticide too
https://en.wikipedia.org/wiki/Maltodextrin
Maltodextrin (maize) is used as an horticultural insecticide both in the field and in greenhouses. It has no physiological or biochemical action. Its efficacy is based upon spraying a 50% solution upon the pest insects whereupon the solution dries, blocks the insects' spiracles and causes death by asphyxiation.
