OAKLAND — At the Hartman home, goose, venison or tuna often answers the question, What’s for dinner? The main course is almost always meat Oakland residents Dan and Suzy Hartman hunted or caught within 100 miles of their home. “Ninety percent of what we eat comes off of the land,” Suzy Hartman said. The Hartmans have a freezer full of fish, duck, goose, other wild birds, venison and a bit of bear burger. They can meat and garden produce and collect wild foods such as mushrooms and berries. The Hartmans believe their diet is a healthy one. “It’s got to …