It is possible to make home made diets that meet the nutritional needs of puppies and adult dogs but it is actually fairly hard to be
sure that the diets meet the nutritional needs entirely without
excesses that might be harmful, such as excessive
calcium or excessive phosphorous.
With giant breeds and I am
sure with your GSDs, these are concerns along with a multitude of other things like «no stairs, no over exercising and etc.» I am considering Honest Kitchen because I would like to go grain free and was hoping that you could recommend one of them and if I should limit my BRTs RMBs because of
excess calcium.