Some think fish may be a healthier option. However, the Burger King BK Big Fish Sandwich and fries has 1,000 calories -- nearly half of what most should eat all day.
Instead, here are five great fast-food swaps:
Eat a McDonald's Big Mac instead of a Burger King Whopper with cheese and save 220 calories and 18 fat grams.
A fish sandwich at McDonald's beats one at Burger King, saving 260 calories and 14 grams of fat.
At Panera, a chicken Caesar salad has 560 calories, compared to Chili's, which has more than 1,000 calories.
While a Taco Bell regular-style Steak Burrito Supreme has 390 calories, Chipotle's comes in at 1,126 calories with 31 more grams of fat.
Finally, eat two slices of Domino's large cheese pizza instead of two slices of the same at Pizza Hut and save 100 calories and 10 grams of fat.
Dietician Meredith Luce said choosing healthy at a fast food joint is just plain common sense.
"I'm going to have some french fries, but I'm going to have the smaller and I'm going to have the grilled chicken. I'm not having the chicken fingers along with the french fries. That's like a double whammy. So, the idea is to try and better balance it," Luce said.
It is not just fast food consumers need to watch out for. At the grocery store, a Pepperidge Farm roasted chicken pot pie amounts to 1,020 calories. It is listed as the worst meal in the market.