The idea
All food should have labeled what is in it. currently some products such as bread and alcohol are exempt from placing their ingredients on the packaging. Other food products can abstain from revealing the full contents using umbrella terms such as 'natural flavorings' .
In addition a system of clear and universal labeling should be applied for all dietary requirements, kosher, halal, vegetarian/vegan, celiac, etc, etc.
Why is it important?
People have a right to know what is in their food so that they can make informed decisions about what they eat.