Dietitians of Canada is what you would expect it to be, the professional association for Dietitians in Canada. They call themselves “the most trusted source of information on food and nutrition for Canadians.” Their web site has a neat Recipe Analyzer tool:
Use this tool to find out the nutrients in your favourite recipes, and see how many Food Guide Servings your recipe provides. You will also find ingredient substitution tips that you can try to make your recipes healthier (e.g. lower in calories, fat, sugar or salt). You can also compare your new recipe to your original recipe to see the difference.
A quick search shows that there are several such services out there. I haven’t compared them, but I’m sure you’ll find one you like.