Hope this helps:
https://www.mspca.org/angell_services/choosing-the-right-diet-for-your-pet/
How about homemade? Click on link for complete article and recipes http://support.mspca.org/site/…
A Vet Takes a Skeptical & Science-Based Look at Veterinary Medicine
http://skeptvet.com/Blog/category/nutrition/
PS: I hope you aren’t free feeding (leaving food down all day). Feed measured amounts twice a day, if they don’t eat within 10 minutes store it in fridg and offer at next meal time.
Always have fresh water available. If you don’t see them going to the water bowl, add a little water to their meals, some dogs don’t drink enough water and this can lead to bladder stones later on.
It’s okay if they skip a meal or two…they will eat when they are hungry.
