I am very close to making a balanced recipe. The only thing i seem to be missing is enough vitamin B12. I know that different types of liver are a good way to get B12 into a pets diet. My question is does it have to be in raw form? I see a lot of single ingredient freeze dried liver products and I'm wondering if that wouldn't be an alternative to raw liver. My dog loves freeze dried liver but can't stand when I add raw liver to her food. She almost always won't eat it. So I'm wondering if I couldn't just use freeze dried liver as a alternative. Any opinions or insight would be really helpful.