What's Best for our Pets?

As a new puppy owner - well since 5 months ago, I am in the dark as to what I am feeding my little whippet Lily. I am concerned that when I go into a supermarket and view the pet food shelves, there is a plethora of food, treats, biscuits, shampoos toys etc.but is it all safe? I can't tell from the packaging what is good, and what isn't. Watch this space, I am on a mission to discover which companies are producing 'good pet products' and what government controls are in place to make sure our pets are not getting a raw deal!