Emulsifiers Make Food More Appealing. Do They Also Make You Sick?

Anyhow I wrote a long detailed reply in regard to your mention of vanilla ice cream, in the end, too long and probably tedious to read so instead here's a short answer.

I too found amongst many food stuffs I could not eat was vanilla ice cream, and for so long a time, viewed the seaweed based additive often listed at fault, even though many other brands and types also list it as an additive. It for some weird how the fuck to I overlook that, never occurred to me maybe it was annatto and its derivatives [0] about 8 years ago, after a life time of suffering, avoiding custards (most egg custard powders use the crap) vanilla ice creams, and until recently some red skinned sausage type food stuffs, fruit drinks ... a long long list of foods depending on country of origin. I am some what predisposed to various food types, and had spent most of my life assuming I was the problem and not part of a wider group.

The food industry is not backwards in thrusting problem additives eg [1] [2] if it means they can make a few extra bucks. In my parts some are trying hard to hide the addition of annatto by listing it instead as natural colour instead.

I never had an issue with eating sweet potato but after eating some food over a week that had some cheap nasty version of inulin in it, I had to forgo eating anything with inulin in it ... some months later I found I could enjoy small amounts of sweet potato again.

[0] https://www.fedup.com.au/factsheets/factsheets-by-additive/1...

[1] https://www.cracked.com/article_28476_the-potato-chip-that-d...

[2] https://en.wikipedia.org/wiki/Inulin

edit, the not a