For the weight – how much do you feed her? If she gets a daily walk and an extra 20-30m of any “vigorous” activity (fetch, jogging, etc), then her exercise is fine. Honestly I wouldn’t use a “light” food. I never have, and I never will. Even the great brands use fillers, which could contribute to her extra doo doos. Try going back to a regular quality variety, but feeding a bit less.
I will have to completely agree about Royal Canin. Breed-specific foods just irk me. Sure, there /could/ be a good theory behind that, as certain breeds will be prone to general health issues and nutritional needs… But every dog is different, and it really varies on his tummy, environment, and activity level. A food that will work perfectly for a Labrador might not work for my Lab.
