Comment by sophacles

So is a law banning certain allergens from food a regulation or a protection from violence for those to whom the allergen is poison?

What about law requiring those who give others food to warn them about potential allergens?

What about a law requiring that warning to be stated in a clear, easy to read manner (rather than hidden fine print)?

(say the allergen is soy, which is not an obvious ingredient in say, ice cream, yet is present in a lot of ice creams).

The line isn't so clear as you pretend.