How bad is Prop 65 warning?
Familiarize yourself with the Proposition 65 label and remember it warns against potential exposure. It doesn’t represent an immediate threat to your health and safety. Everyone’s tolerance varies. You may choose to avoid these products altogether, while others may not worry you as much. In summary, the warning sign at McDonald’s in California fulfills a Prop 65 requirement to inform customers about potential exposure to chemicals such as acrylamide and mercury that are associated with cancer and reproductive harm.