We did not formulate this diet for puppies and it does not meet the AAFCO guidelines for growth stage dogs. We do not recommend feeding it to dogs as the primary food source until they have reached an adult weight (usually 6-9 months for small breeds, 9-12 months for medium breeds, and 12+ months for larger breeds).Feeding our current diet to a growing dog would require supplementation of a few minerals that growing puppies have a much higher dietary requirement for compared to adult and senior dogs. The only two nutrients in our diet that are below the AAFCO recommendations for puppies are calcium (3 g / 1000 kcal for puppies vs. 1.25 g / 1000kcal for adults) and phosphorus (2.5 g / 1000 kcal for puppies vs. 1 g / 1000 kcal for adult).Calcium and phosphorus can be tricky to supplement as they also have a low 'safe upper limit,' making the acceptable window relatively small. There are some supplements that provide additional calcium and phosphorus labeled for use in puppies but needs to be measured carefully.Most adult formulas are also lower in calcium and phosphorus than is recommended for puppies, as adults do not need as much for bone growth and excessive calcium puts stress on kidney function. Here is our full nutritional profile should you choose to use it as a base and supplement accordingly.