We have been feeding a Raw Diet for just over 3 1/2 yrs.
A good quality fish oil Omega 3. Not all fish oils are created equal.
We use Nordic Naturals Omega 3 Pet Large Breed to Very Lager Breed Dogs. It comes in a liquid. We also like Omega 3 that are made from Sardines, Mackeral or Anchovies. Make sure that they are not made from Farmed Raised Fish.
We also add USDA/Organic Coconut Oil. We get ours at Costco. It come in a 2pack.
We do USDA/Organic Raw Eggs with the shell. Regular eggs shells are coated with a type of wax or a mineral oil. Also any time you cook a raw food like eggs you will destroy some of the amino acids and enzymes. Eggs are one of the most complete foods. It can grow a chicken!!
Raw meaty bones 2-3 times a week are great. These will help keep teeth very clean. Besides being good for them.
If you don't decide to go totally raw there are a lot better choices of foods.
Top of the Kibbles are Orijen and Acana. Nothing can compare with them as far as their ingredients. But some dogs might not do good on it. It's what come out the other end. Each dog is different.
Good sites to compare foods are. Will teach you what you don't want to see in foods. Dog Food Reviews and Ratings | Dog Food Advisor DogAware.com: Diet & Health Info for Man's Best Friend www.truthaboutpetfood.com
I suggest before going totally raw is to join some Raw sites. Raw Feeding Rebels on Facebook. Also firstname.lastname@example.org
Also read some Raw Feeding books.
Also look up Jane Anderson Raw feeding site.