Aspartame and sucralose have always upset my stomach. I took it as a sign to stay away.
Aspartame has been known to be horrible since at least the 80s. I remember my mom warning me to stay away from anything sweet my grandfather had (he was type 1) because it was poison.
They try to sneak sucralose into everything. I check labels like crazy and still every once in a while I get the numbers on my tongue that tells me I missed it on the label.
Gellan gum and carageenan upset my stomach horribly. Everything is being adulterated with it. Finding heavy cream without it is nearly impossible. I make my own yogurt, sour cream, buttermilk, etc to avoid it but it is even showing up in cream cheese which is expensive for me to make myself, plus I have to find clean cream.
I really wish foods could be simple again.