My youngest has a peanut allergy. When she was little it was easy to always scan the bold print saying "May contain ..." as I bought things or was given packets of things like on a plane.
So I can see the usefulness in a packet of peanuts having the bold warning above the ingredient list saying it contains nuts.
So I can see the usefulness in a packet of peanuts having the bold warning above the ingredient list saying it contains nuts.