You should never drop below 1200 calories. So I would suggest an 1800 calorie diet and try and get at least 5 hours of exercise in during the week. Also, being 310 pounds puts you at an increased risk of diabetes as does animal fats so I would also say you should cut out as much red meat as possible maybe only two to three servings of it a week or none if that is possible. Fish and Beans are a GREAT alternate source of protein and have healthy fats and proteins that support muscle growth.
