Long John Silver's 2-Piece Whitefish Fillet Combo —
Long John Silver's 2-Piece Whitefish Fillet Combo: Cod breaded in a salty batter is the centerpiece of Long John Silver's menu. Two pieces have 1,580 milligrams of sodium. The entire meal, with fries and a medium fountain drink, has 2,140 mg of sodium and 1,230 calories.