Pork Tenderloin with Blueberry Sauce (Paleo, Whole30, GF, AIP, Keto)

Name: Pork Tenderloin with Blueberry Sauce (Paleo, Whole30, GF, AIP, Keto)
Prep time: 20 min
Cook time: 25 min
Total time: 45 min
Cuisine: American
Ingredients: 2 to 2½ pounds pork tenderloins (see Notes section below recipe); 1/4 cup water; 2 to 3 Tablespoons citrus juice (fresh: lemon, lime or orange ); 1 Tablespoon olive oil (or avocado oil); 1 teaspoon sea salt; 1 teaspoon dried rosemary; 1 teaspoon dried Italian herbs (any combination of thyme, sage, oregano or marjoram); 1 teaspoon garlic powder (optional; omit for Low FODMAP); 1 teaspoon dried ginger powder; 2 cups blueberries (fresh or frozen (and slightly defrosted)); 1/4 cup balsamic vinegar ((omit for GAPS)); 1/4 cup shallots; 2 Tablespoons coconut oil (divided); 2 Tablespoons olive oil; 2 Tablespoons fresh rosemary (minced); 2 Tablespoons pure maple syrup (or low carb syrup for Keto version; (use honey for GAPS, and reduce cooking time of sauce for GAPS)); 1 clove garlic (optional; omit for Low FODMAP); 1/2 teaspoon ginger powder (dried); 1/4 teaspoon sea salt