A new study shows that full-service restaurants are the real calorie offenders, Fox News reports. Thanks mainly to the ginormous portion sizes, a typical entrée packs an average of 800 calories, while a full meal clocks in at approximately 1,500 calories…topping out at over 2,000 calories if you decide to order a beverage and split dessert.

Researchers analyzed more than 2,516 menu items at 21 national sit-down chains, such as Applebee's, Ruby Tuesday, and IHOP. The findings: Not only did calorie and fat levels often go way beyond what's considered healthy for a single meal (which is about 600 calories if you're shooting for 2,000 calories a day), but the sodium and saturated fat levels in one meal often exceeded an entire day's allotment.