If available in your area try Propet. I have my 3 yr olds on the Large Puppy formula. If for any reason they start to pack on the weight I'll go down to the Maintenance forumula. My previous dog was given the Performance formula and then switched at around 4 to the Maintenance.

If not available then take a look at the ingredients for the formula on their web site. Then find a comparable dry food. In general the more meat ingredients listed first, along with dry egg products the better. The amount of protein and fat to feed is dependent on the age of your dog and other health factors.

The criteria for determining of a particular dog food is good for your dog is actually quite simple:

1. Does the dog readily eat the food. My larger dog has her dinner down the hatch in about 20-30 secs. The smaller one takes maybe 1.5 minutes. The current crew have been eating it for 3 yrs, and the prior dog 10 yrs.

2. Does it result in a healthy dog? For example no food allergies, a good coat, proper maintenance of weight.

3. Does it result in a dog with a high energy level?

If it meets those criteria then it doesn't matter if the name on the bag is Propet, Science Diet, Iams or some other brand. But once you find a brand keep them on it. Regularly switching is liable to cause digestive problems.