The scribbler who came up with the ingenious idea of writing down the ingredients on a separate piece of paper should please tell me how I am supposed to decide before buying whether a spice or a coloring or preservative is incompatible for me.
The scribbler who came up with the ingenious idea of writing down the ingredients on a separate piece of paper should please tell me how I am supposed to decide before buying whether a spice or a coloring or preservative is incompatible for me.

Onions red 40%, sugar, water, grape juice concentrate red, brandy vinegar, modified starch, table salt, lemon juice concentrate, ground black pepper.
https://www.smood.ch/de/r/migros/migros-thonex/product/selection-zwiebel-chutney-65d4042735317380f262d252
For Dragonball:
Yes dear Dragonball. But I need this information in the store when I have the item in my hand!