Ah, this is great topic of conversation and quite a good bit of debate surrounding the issue.
The various studies that have been done imply that nutrition is an important aspect to a growing large breed puppy and can have signifcant impact the quality of his health later on.
The evidence (http://ivcjournal.com/feeding-large-breed-puppies/) suggests that we should not restrict protein from their diet since this play a huge role in lowering the risk of developing joint and arthritis including hip dysplasia later on in their life.
The second suggestion (http://ipupster.com/best-puppy-food-reviews/) as also purported by DFA is that excess calcium can now be linked to skeletal disease.
So the key-takeaway is to find commercial dog foods that are low in calories, are low in fats and have limited calcium.
With that mind, I think the best way to control these is to choose a raw food diet for our large breed puppies.
Dr. Becker at Mercola Pets has a great and detailed video (https://youtu.be/u9gbxLiKaJU) I also found helpful. A tad long but well worth the watch!
