Prepare the grill. Place the orange juice, garlic, honey and brown sugar in a large zip lock plastic bag. Add the tenderloin and refrigerate up to 6 hours. Lightly oil the grill so the pork does not stick. Grill the pork on medium to high heat for 15 minutes or until a meat thermometer reaches 160 degrees. Turn and baste while grilling.
Nutritional information per serving: 170 calories, 3.5 g fat, 1 g saturated fat, 60 mg cholesterol, 50 mg sodium, 11 g carbohydrates, 0 g fiber, 22 g protein.