Hi Erin-
Fromm is a great food and company. I like their Gold Large Breed Puppy formula. The Fromm website only lists the “as fed” and “dry matter” data in their techinical analysis for the HeartLand Large Breed Gold, which according to the article on DFA for the calcium calculator will not give an accurate read out on the ratio of Ca:P and Ca:kcals. I’d see if you can email Fromm and ask for the “average” or MAX levels of calcium and phos and then use those numbers.
Grain free vs grain inclusive is a non factor for growth. The important things are regulating calcium intake with an appropriate diet and making sure you are using a food with low energy density. Keeping your puppy lean throughout growth and life will help her better her chances at proper growth and development. It is also going to be important to work with your vet in determining if she is growing at a proper rate given her upringing at the kennel she came from.
