I looked up the ingredients of BB. They have a list of additives as long as your arm. Some people are OK with this, I'm not. I'm quite tired of brands that sell a message of health that is contradicted by the ingredients.
We all know that people who eat lots of additives don't live as long and have poorer health, so why feed them to our dogs. I'd go for raw, cold pressed or look for an additive free food (don't mistake this for preservative free, there should be no A,E,D numbers etc). Naturavetal is good. As you may have gathered from my other posts I'm a bit of a fan.