Modesto Bee: Protein style vs Double Double

A calorie analysis by the Modesto Bee:

In-N-Out Burger's Protein Style burger has less than half the fat and calories of the Double-Double. That "secret sauce" on most fast-food hamburgers has a mayonnaise base, so it's better to stick with ketchup and mustard. Double-Double with onion: 670 calories; total fat 41 grams. Protein Style hamburger (bun replaced with lettuce): 240 calories; total fat 17 grams.