Its for all life stages because the protein, minerals and vitamins are sufficient levels for all life stages. If your dog does have allergies I wouldnt suggest switching to wellness because they have grains in their food and since your dog is getting older grains are bad carbs and can make your dog gain more weight then it is now. Try the reduced calorie it has chicken in it so if your dog has allergies maybe that wouldnt work..the venison is a great formula no matter what bread or size dog it is they all love it.

Princess 21, looking at all your comments you have left it appears you are a representative of Natural Balance. Natural Balance has done a poor job communicating its formula change of Duck and Potato and based on the number of poor ratings, you should know your company dropped the ball.

Our eleven-year old golden retriever Bailey has been on Natural Balance Duck and Potato for almost a year with great success. Then they changed the formula (unfortunately there was nothing on the bag to indicate a change had been made). Bailey immediately began having diarrhea so we called the manufacturer and found out about the change. At that point, we didn't have any of her old bag to mix with the new formula so we put her on a bland chicken and rice diet and very very very slowly began to add the duck and potato formula back in. Every time we get to 100% duck and potato, Bailey gets sick again. We are back to chicken and rice for the fourth time... starting all over again!

Now that I see others are having this same difficulty, we are definitely going to make a switch to another brand. We no longer trust Natural Balance and will never go back. In fact, I found out yesterday a friend with a golden retriever also on this diet has had the same problem and spent hundreds at the vet. She has since switched to Buffalo Blue Fish and Potato diet.