Hi Jeannine-
You will need to email the company to find out the average or MAX calcium and phosphorus levels of the food the breeder has your puppy on and then input those values into the tool found here: /best-dog-foods/best-large-breed-puppy-food/
If the food falls between a ratio of 1.1:1-1.5:1 for Ca/Phos and a 3g/1000kcal Ca/calorie ratio then the food is safe.
A lot of breeders, vet’s, rescues, dog clubs etc are still unaware that calcium and phosphorus, plus weight gain are what put large and giant breed puppies at higher risk for DOD’s and not protein. So they focus on low protein puppy foods, not realizing protein is not the issue.
