GoodGuide's Cat and Dog Food Ratings: Which Brands Are Best?

Science Diet takes double honors as the best brand of both cat and dog food among 50 brands of pet food rated by GoodGuide. The ratings were released exclusively to Consumer Ally and will be online in their entirety on Monday.

Consumer Ally recently teamed up with GoodGuide, whose experts have rated more than 65,000 consumer goods -- including food, toys, personal care and household products -- using factors that include concern for the environment, personal health and social responsibility, as consumers begin increasingly to consider those in addition to price.