Had a similar issue with my 2yr old Border Collie, we started her on the wellness brand, she was good for a while but started having diarrhea 3-4 times a day, after talking to the vet they recommended just changing the flavour, so we switched to the core brand and again similar issue. She was still very active, full of energy, coat and teeth looked great, but she also couldn’t gain any weight as the food went right through her (was under weight according to the vet). While away for work one week she spent stayed with my parents and they feed there dog purina plus, and she really enjoyed it and became regular, I have kept her on it for the past 6 months and she enjoys the food, hasn’t had diarrhea since and actually gained weight. However her coat doesn’t look as shiny, she seems like she has lost energy. I am trying to find a middle ground here, I know the purina is a lower grade dog food but it accomplished getting her to the look healthy weight wise, and become regular, but obviously the ingredients are having some other effects, the wellness worked in some ways but not in others. Just looking for some suggestions from those with highly active dogs, and what is working for them.
