It may be easier to douse that chicken or pork with store-bought barbecue sauce, but a little extra effort can prevent a fat and calorie windfall. Instead, opt for nonfat rubs or homemade marinades to season grilled meat more naturally and healthfully. Dousing chicken with nonfat Italian dressing is probably the easiest way to add flavor. Various herbs and spices can be mixed with vinegar or wine to create a zesty and unique flavor for all types of red meat, fish and poultry. For a simple dinner, place individual portions of meat in a sealed plastic bag with the marinade and refrigerate. Be sure to allow a minimum of two hours for the marinade to soak in to turn out the best flavor possible.