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					Originally Posted by  circi     A leather shoe can be made nutritionally complete by adding vitamins but you wouldn't feed one to your dog.  I was once sent a link that backed up the theory - I wish I'd saved it - very interesting reading!  
I was just saying for the price, I did not expect to find multiple cheap fillers.  Did not intend to stir up any controversy      |  
 
  That's why they do testing, to see if the dogs actually do well on the formula.  What do you call fillers?  Grains?  Complex carbohydrate's have their place in nutrition.  They are a good source of energy and some contain amino acids that are difficult to find elsewhere.   Do you really think a potato is that much more nutritious than a rice? Dog food can't be 100% protein, they need other things besides protein, namely carbohydrates, and many times the carbohydrates is chosen for ease of digestibility.  Also carbs will give a feeling of being full and this too is important, a dog needs to feel satiated after eating.