And even though food dye allergies are rare, they still can occur. If you suspect you might be allergic to a particular dye, here’s how to spot the signs and avoid foods that contain it.

The bill would also require warning signs in areas where food is prepared as well as dining spaces. Customers will still need to communicate with servers about any food allergies they have.

Even when you’re aware of a food allergy, mistakes can happen. For example, ordering an Italian sub without confirming that it isn’t made with mortadella could lead to a reaction for someone ...