I am also following the Canadian food guide. It's not designed for weight loss in particular but it is designed for ideal healthy eating. I use it as a guide for my daily meal plans. Also, a guide for proper portion/serving sizes.
If you are gonna reduce your carbs, I suggest reducing refined carbs (white bread, white pasta, rice etc...) but don't be afraid of complex carbs (whole grain, oatmeal, fruits etc..)
Ultimate Goal & Mini Goal
Mini Goal #1 - 20lbs - Jan 23, 2010