McDonald's Corp. says it will start posting calorie counts on its menus nationwide starting next week, ahead of a regulation that could require chains to disclose the information.

Here's a look at some of the calorie counts for some of its food and drinks.

—Big Mac — 550 calories

—Double Cheeseburger — 440 calories

—Filet-O-Fish — 380 calories

—Angus Deluxe — 750 calories

—6-piece Chicken McNuggets — 280 calories

—Medium fries — 380 calories

—Medium Coke (21 ounces) — 210 calories

—Medium Iced Latte — (16 ounces) 100 calories

—Baked Apple Pie — 250 calories

—Strawberry Sundae — 280 calories