[Jeannine M]

I just copied and pasted from the article under ‘What to feed your Large breed puppy’

Recommended
Calcium Guidelines
Fortunately, there’s general agreement among the experts. To meet AAFCO nutrient profiles for growth13 in large breed puppies, a dog food must (on a dry matter basis) contain:
1.2 to 1.8% calcium
1.0 to 1.6% phosphorus
Calcium-to-phosphorus ratio 1:1 to 1.8:114
However, for some higher calorie foods, the above guidelines may not apply.