I Home Cook for Taycie. I use Dr. Remilllard. I did a Consultation with her because of Medical Issues. Her diet is strictly formulated for her. However if your dog is healthy, you can purchase a diet for just $25 on her website.
PetDiets - VNC putting pets' health first!
As far as Supplementing I use Balance It. You can check out there website. You can also purchase recipes from them as well.
https://secure.balanceit.com/marketplace2.2/index.php?
Home cooking can be wonderful, but if not balanced correctly it can seriously do more harm them good. If not formulated correctly it can cause a wealth of problems!
Good Luck! I hope you find a Nutritionist that can help formulate for you!