[pitlove]

Hi Tabitha-
Food allergy is rare in dogs and at only 17 weeks old highly unlikely.
Victor Yukon River is highly inappropriate for a large breed puppy. With a Ca/Phos ratio of 1.5:1 and a Ca/Kcal ratio of 4.9g/1000 kcals, the diet is approaching the safe upper limit for the calcium to phosphorus ratio and well exceeds the recommended calcium to calorie ratio. Protein is not an issue. 20 years of research has proven that.

Also you have not described any symptoms so it is hard for us to help.