Reminds me of another website that is awesome and has a board certified vet nutritionist :
www.balanceit.com
I use their supplement: Balance It
They don't formulate diets, but have great recipes for healthy pups. They also have blends that you just add meat or fish to.
this link on their site is fun to create different recipes:
https://secure.balanceit.com/recipeg...ver4/index.php