My husband and I have been quasi-vegetarians for the past four years. We don’t eat chicken or red meat (including pork) but we do consume eggs, dairy and fish. We’ve had many conversations about the possibility of going full vegan but there was always something prohibiting us from taking the 100-percent animal-free plunge. Then my husband Andy (a marathon runner) read a book about a vegan ultra-marathoner and his mind was set. For Andy, it was now vegan — or bust.