Ranked by protein per calorie.
- Bacon Double Cheeseburger — 440 cal, 27g protein
- Double Quarter Pound KING™ Sandwich — 930 cal, 57g protein
- Double Hamburger — 360 cal, 22g protein
- Double Cheeseburger — 400 cal, 24g protein
- Double STACKER KING™ — 1130 cal, 65g protein
- BACON KING™ Sandwich — 1200 cal, 66g protein
- Single Quarter Pound KING™ Sandwich — 600 cal, 33g protein
- Bacon Cheeseburger — 340 cal, 18g protein
- Hamburger — 250 cal, 13g protein
- Cheeseburger — 290 cal, 15g protein
- Single STACKER KING™ — 740 cal, 37g protein
- RODEO KING™ Sandwich — 1300 cal, 63g protein
- Extra Long Cheeseburger — 640 cal, 29g protein
- IMPOSSIBLE™ WHOPPER® Sandwich — 630 cal, 28g protein