No nutritional value, says a rep
                                
                                
                                    (Newser) -
                                    Chick-fil-A has shunned a not-so-nutritious food item. No, it's not the classic Chick-fil-A Sauce,  which boasts  140 calories, 13 grams of fat, and 120 milligrams of sodium per serving. Instead, it's … iceberg lettuce. "We have a mandate: Never use iceberg lettuce," David Farmer, the restaurant'...