Well, I never said " completely"... and I will offer a Layer pellet to my girls to have when they fell need anything they could be missing :)
....nor do I have RIR's ;)
Sad to see this is from 5 years ago... but also happy to see it's not a super new idea. I am also well versed in nutrition for other critters, and the nutrition for commercial production poultry thanks to my degree. I'd rather forget that part of it, and start learning about what chickens SHOULD...