Low-Calorie Fast Food: Orders Under 600 Calories and Eating Out

Eating out is one of the hardest parts of a calorie deficit, because portions are large, recipes are hidden and a single meal can use most of your daily budget.

Still, you don’t have to avoid restaurants to make progress. This guide explains why restaurant meals run so high and how to use the calorie counts that chains must post. It then shows fast-food orders under 600 calories, built from lab-measured values with the totals added up. Finally, it covers sit-down meals with no numbers, the drinks and extras that add up quietly, and how to fit eating out into your week.

Why Restaurant Meals Run So High

Restaurant meals are bigger than most people realize. A 2016 study measured the most popular meals from independent restaurants in three US cities, burning each one in a lab to find its exact energy. On average, a meal held 1,205 calories, about the same as similar meals from large chains.

American, Italian and Chinese meals were the highest, averaging 1,495 calories. In addition, 92% of meals held more energy than a typical person needs at one sitting. For someone eating 1,800 calories a day, that average meal uses two thirds of the day.

Eating out also tends to raise your total for the day. In a national survey analysis of more than 12,500 adults, days with fast food carried about 194 more calories than days without. Days with a full-service restaurant meal carried about 205 more.

The bigger problem is that meals feel smaller than they are. In a BMJ study of nearly 1,900 adults leaving fast-food restaurants, the average meal held 836 calories. Diners underestimated it by 175 calories, and the gap grew as meals got larger. So the biggest meals are the ones people misjudge most.

Use the Calories on the Menu

For chain restaurants, you rarely have to guess. Under the FDA menu labeling rule, any restaurant that is part of a chain with 20 or more locations must post calories next to each standard item. That includes drive-through menu boards.

The rule also requires a few useful details, such as rounding calories to the nearest 10 above 50 calories. Each menu must say “Additional nutrition information available upon request,” so you can ask for protein, fat and sodium in writing. However, daily specials, temporary items, custom orders and condiments on the table are exempt.

Posted numbers are accurate on average, but not for every item. When researchers tested 269 restaurant foods in a lab, stated calories were only 10 calories off overall. Still, 19% of items held at least 100 calories more than stated, and lower-calorie items were more likely to be understated. If you log the posted number, treat it as a close estimate rather than an exact one.

Seeing the numbers does change choices, though only slightly on its own. After one large fast-food franchise added calorie labels, purchases dropped by about 60 calories per order, although that effect faded over the following year. In a dinner experiment, people given menus with calorie labels ate 14% fewer calories. The labels help most when you use them on purpose, with a target in mind.

Fast-Food Orders Under 600 Calories

A meal budget of about 600 calories fits most weight-loss targets, since it leaves room for two other meals and a snack. To stay under it, start with one main item, then add a small side or none. The table below uses USDA lab values for common fast-food items, so you can see the building blocks before you order.

One result surprises many people. The grilled and crispy chicken sandwiches carry nearly the same calories, but the grilled one has more than twice the protein. Protein keeps you full longer, which the protein guide explains. So the grilled sandwich is the better meal, even though it isn’t much lower in calories.

Four Orders That Fit

Here’s how those items combine into full meals, compared with a typical combo. Check the posted calories, since exact numbers vary by chain.

The two biggest savings come from the drink and the fries. Swapping a medium cola for a diet soda or water saves 180 calories. Going from medium to small fries saves another 143. Together, those two changes cut the typical combo from 888 to 565 calories without changing the burger at all.

Sit-Down Restaurants With No Numbers

Independent restaurants and small chains don’t have to post calories, and that’s where estimates go most wrong. The USDA has measured sample orders from sit-down restaurants in a lab, and the differences between similar dishes are large.

The pattern is clear: breaded, fried and sauced dishes cost far more than grilled or stir-fried ones. A full order of General Tso’s chicken holds more than twice the calories of chicken and vegetables from the same kind of menu.

A few habits help when no numbers are posted:

• Pick the cooking method first. Choose grilled, roasted, steamed or stir-fried over breaded, fried or creamy.
• Box half at the start. Ask for a container with the meal, so the second half becomes tomorrow’s lunch.
• Ask for sauce on the side. Oils, dressings and sauces add up fast, as the hidden calories guide shows.
• Fill up on vegetables. Swap one starchy side for a vegetable side when you can.

To log the meal, find the closest match in the table or in a chain’s posted menu and round up rather than down. Because people misjudge large meals the most, a slightly high estimate is usually closer to the truth.

Drinks, Bread and Extras

The items around the meal can matter as much as the meal itself. A large fast-food cola has about 267 calories, and refills at a sit-down restaurant can double that. By contrast, diet soda, unsweetened tea, black coffee and water have almost none.

Alcohol adds up the same way, since a 12-ounce regular beer has about 153 calories and a 5-ounce glass of wine has about 120. Two drinks with dinner can add as many calories as a side of fries. Bread baskets, chips and salsa, and shared appetizers count as well, so pick one before you sit down.

Fitting Eating Out Into Your Week

How often you eat out matters as well. A review of long-term studies found that eating out often was linked with gaining weight over time. Fast food showed the strongest link with weight and waist gain.

That doesn’t mean you need to stop, but it does mean planning for it. If you know dinner will be out, keep breakfast and lunch lighter and higher in protein. Your daily target from the calorie target guide still applies, and so does your weekly average.

If one meal goes well over, let it go and return to your usual plan at the next meal. The overeating guide covers how to reset without skipping meals to make up for it.

Common Questions

The Bottom Line

Eating out can fit a weight-loss plan once you know where the calories come from. Restaurant meals often run over 1,000 calories, and people underestimate large meals the most.

At chains, use the posted calories and build each order around one main item. Skip sugary drinks, and keep fries small or leave them out. At sit-down restaurants, choose grilled or stir-fried dishes, ask for sauces on the side and box half early. Log your best estimate, round it up, and plan the rest of the day around the meal. That way, eating out stays part of your routine instead of a setback.