There's separate legislation for baby foods, which defines the levels of salt, sugar, and other nutrients allowed in those foods. That's mandatory legislation. What we're talking about here is the voluntary provision of information on what I guess you'd call family foods.
Evidence of meeting #40 for Health in the 39th Parliament, 1st session. (The original version is on Parliament’s site, as are the minutes.) The winning word was school.
A recording is available from Parliament.