Ancestral Diet

My acupuncturist talked about how it isn't easy to correct blood sugar when you are vegetarian. She talked about how our bodies need animal fat and protein to function properly. Lately I've been seeing articles about an ancestral diet. This is a diet mimicking what we as a species ate before industrialized agriculture. We mostly subsisted on what we could gather and hunt. It certainly correlates with eating locally and seasonally, but not with being a vegetarian.
I remember when I was in college the first time around. I was a vegetarian who was sick all the time. I know other factors were involved, but I remember quite well going home and eating meat that my Mother cooked. I always felt better. I felt stronger and healthier. I would return to school and go back to being a sickly vegetarian. As part of my elimination diet I will be eating meat, mostly chicken, but I'd like to try some locally raised lamb and even bison. If you've got good recipes for lamb or bison please pass them along.