This post was inspired by the Wrap Genius project by NYU graduate student Sam Slover. He carefully tracked all of his grocery purchases for ten weeks in order to think about improving food labeling. Check out the site he created here: http://www.wrapgenius.me/
Link to the discussion on Facebook
For more information
This Government of Canada page on food and nutrition has a few resources and tools to help you better understand food labeling: http://www.healthycanadians.gc.ca/eating-nutrition/label-etiquetage/index-eng.php
Canada's Food Guide provides a recommended daily number of servings for each of the 4 main food groups (Vegetables & Fruits, Grain Products, Milk & Alternatives, and Meat & Alternatives) based on age and sex: http://www.hc-sc.gc.ca/fn-an/alt_formats/hpfb-dgpsa/pdf/food-guide-aliment/view_eatwell_vue_bienmang-eng.pdf