When I brought my girl home I tried to transition her over to TOTW Wetlands and she loved the taste but had loose stool.
I took her to the vet just to make sure she was okay, she was gaining weight and had plenty of energy. As a precaution he gave us some powder to "deworm her better". She did not test positive for any worms but accrding to the vet that is not unusual.
I ended up putting her on Nutro Natural Choice Puppy and she did good on it, now whe is 6 months old and I have moved her back to TOTW and she seems to be handling it fine.
She never acted like she felt unwell, but I know now that she has a sensitive tummy and it gives me a good reason not to let visitors feed her people food.
Also, you may try adding yogurt to her kibble, it won't hurt and will probably help. Live cultures of course.
Best of luck and keep us posted.