Hi Lori-
Protein is inconsequential in the growth of any large or giant breed. Ca/Phos ratios are important and using a low energy density food (low calorie) to prevent excess weight gain. Wellness Core Puppy is approaching the safe upper limit for the Ca/kcal ratio, so I would think about reconsidering that formula if it were my puppy. Not to mention the kcals/cup are on the high side + the fat being high. Realistically that would be a puppy formula more suitable for a small to medium size breed.
As far as grain free goes, what is YOUR reasoning behind using a grain free diet?
