Should you use cat food for puppies?

first of all spare me the wize comments. I know it's called CAT food

someone told me today that mixing a little cat food in with the puppy food is actually good for puppies because of some protein or some other big word. Not 50/50 or nothing just a bit.

Now this person wasn't a drunk or methhead or democrat or pothead or anything else that would disqualify it as a old midwives tale. it was a normal person.

Anyone else heard this? Tried this? Know anything? I only know my puppy loves to get into the catfood if he gets a chance

Should you use cat food for puppies?
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