The 10 Best Low-Calorie Items at Jack in the Box Under 500 Calories
Jack in the Box is not the first place people think of when they are trying to eat light. A chain famous for a 1,040-calorie burrito and late-night Munchie Meals does not exactly scream “health food.” Fair enough.
But here is what actually surprised me looking at this menu closely—there are more under-500-calorie options than most people realize. Real options. Not just a plain side salad and a black coffee, and calling it a day.
This list covers the 10 best ones. Items that are actually worth ordering, not just technically under 500 calories.
1. Breakfast Jack — 350 Calories
Protein: 16g | Fat: 18g | Sodium: 840mg
The one that started fast-food breakfast in 1969 is still one of the leanest things on this menu. Freshly cracked egg, grilled ham, American cheese, soft bakery bun. That is the whole build. No heavy sauce loading it up, no double patty pushing the numbers into uncomfortable territory.
350 calories for something that actually fills you up. Order it without cheese, and you drop another 40–50 calories. Order it with bacon instead of ham, and you are at 370—still a solid number.
Worth noting: this item is available all day through the drive-thru at most Jack in the Box locations. You do not have to show up before 10:30 AM. That is one real advantage this chain has over most others — the breakfast menu runs around the clock, so the lower-calorie morning items are always an option.
2. Jumbo Jack (No Cheese) — 340 Calories
Protein: 15g | Fat: 14g | Sodium: 530mg
This one surprises people every time. The Jumbo Jack without cheese comes in at 340 calories — lower than a lot of “lighter” items at competing chains. With cheese, it is about 380, which is still well under the 500 limit.
Beef patty, tomato, lettuce, onion, pickles, ketchup, and mayo on a sesame seed bun. This is not a junior burger or a stripped-down approximation of a burger. It is the actual Jumbo Jack. Just without the cheese slice.
If you come to Jack in the Box primarily for burgers and feel like eating light means settling for something disappointing, start here. It does not feel like a compromise.
3. Supreme Croissant — 370 Calories
Protein: 18g | Fat: 22g | Sodium: 910mg
This is probably the most pleasant surprise on the list. A buttery croissant stacked with a freshly cracked egg, grilled ham, hickory-smoked bacon, and melted cheese sounds like it should be sitting at 600+ calories. It is 370.
18 grams of protein is strong for this calorie count. The croissant is the real thing — flaky, buttery, not a bread approximation. This is genuinely one of the better breakfast sandwiches on the Jack in the Box menu, regardless of calorie count, and the fact that it fits under 400 makes it easy to recommend without caveats.
Available all day at drive-thru locations.
4. Bacon Breakfast Jack — 370 Calories
Protein: 17g | Fat: 20g | Sodium: 970mg
The hickory-smoked bacon version of the classic Breakfast Jack. Same build — freshly cracked egg, American cheese, soft bakery bun — just with crispy bacon instead of ham. The calorie difference is minimal, and the flavor payoff is higher if bacon is your preference.
17 grams of protein at 370 calories is a good ratio. One of those items where the nutritional profile does not feel like it matches how satisfying the sandwich actually is.
5. Grilled Chicken Sandwich — 490 Calories
Protein: 30g | Fat: 18g | Sodium: 1,060mg
Right at the ceiling of this list, but worth being here. Grilled chicken breast, tomato, lettuce, and mayo on a bun. 490 calories, 30 grams of protein — that protein number is the best on this entire list by a stretch.
The fried chicken sandwiches at Jack in the Box clear 500 calories quickly because of the breading. This one stays under because you are not adding a layer of battered coating to the equation.
Ask for no mayo, and it drops to around 390 calories. That is a significant drop, and the sandwich still works without it.
6. Chicken Nuggets (5 Pieces) — 240 Calories
Protein: 13g | Fat: 12g | Sodium: 480mg
Five pieces, 240 calories. That is 48 calories per nugget, which is on the low end for fast food. These are white meat with minimal breading, and the texture holds up better than most fast-food nuggets—they do not turn rubbery when they cool slightly.
They are underrated on this menu. Most people order them as an add-on rather than a main item, but paired with a side salad and a zero-calorie drink, they make a legitimate lunch under 350 calories total.
Ten pieces would be 480 calories — still under the limit if you want more.
7. Egg Roll (1 Piece) — 200 Calories
Protein: 4g | Fat: 9g | Sodium: 390mg
Jack in the Box is one of the only major fast-food chains that has egg rolls on its permanent menu. A single piece is 200 calories—pork, cabbage, carrots, celery, and onion in a crispy fried wrapper.
Three pieces are 600 calories, so the individual or double order is where you want to land if you are counting. These are genuinely good — a completely different eating experience from the rest of this list — and at 200 calories for one, they work well as a side alongside a lighter sandwich.
If you have never ordered these, the low-calorie meal is a reasonable excuse to try.
8. Hash Browns — 190 Calories
Protein: 2g | Fat: 13g | Sodium: 350mg
190 calories. One of the lowest-calorie hot sides on the entire Jack in the Box menu. The outside gets properly crispy—not just warm and soft, actually crunchy—in a way a lot of fast-food hash browns miss.
Pair it with the Breakfast Jack, and you have a full breakfast at 540 calories. Add a black coffee, and you are still under 550 for a complete morning meal. Not bad for fast food at any time of day, including the drive-thru at 11 PM.
9. Side Salad with Low-Fat Balsamic — 55 Calories
Calories without dressing: 20 | Low-fat balsamic: ~35 cal
Twenty calories for the salad itself. The dressing choice is everything here — the low-fat balsamic keeps the total around 55. If you reach for the ranch dressing instead, you are adding 200+ calories, and you have essentially undone the point of ordering the salad.
This is not a standalone meal. Nobody is pretending it is. But as a side swap when you would otherwise be adding a small fries (290 calories), the math is straightforward—55 versus 290 is a 235-calorie difference for a similar volume of food.
10. Black Coffee or Unsweetened Iced Tea — 0–10 Calories
Not technically food, but this belongs on the list because the drink choice quietly wrecks more low-calorie fast-food attempts than anything else.
A large soda at Jack in the Box adds 200–300 calories to a meal. A large sweet tea adds a similar amount. Neither adds protein nor adds satiety; both add a lot of sugar.
Black coffee is zero. Unsweetened iced tea is effectively zero. If you are already making smart choices on the food side of the order, do not hand those calories back in the cup.
How to Build a Full Meal Under 500 Calories at Jack in the Box
A few combinations that actually work:
Best breakfast under 400 cal: Breakfast Jack (350) + black coffee (0) = 350 calories
Best lunch under 450 cal: Jumbo Jack no cheese (340) + side salad with low-fat balsamic (55) = 395 calories
Best snack or light meal: 5-piece Chicken Nuggets (240) + unsweetened iced tea (0) = 240 calories
Most filling under 500 cal: Supreme Croissant (370) + black coffee (0) = 370 calories—18 g protein, real croissant, available all day
Best protein per calorie: Grilled chicken sandwich (no mayo) (390) + side salad (20) = 410 calories—roughly 30g protein
A Few Things Worth Knowing Before You Order
The Jack in the Box app shows full nutritional information for every item and lets you customize your order—add or remove ingredients—before you get to the window. If you are tracking macros or calories carefully, it is worth using rather than guessing at the counter.
Calorie counts shift when you modify items. Extra cheese, different sauces, upgraded drinks — all of it changes the numbers. The figures in this article reflect standard preparation.
And for what it is worth, the all-day breakfast menu is your friend here. The Breakfast Jack, Supreme Croissant, Bacon Breakfast Jack, and Hash Browns are all available through the drive-thru at any hour at most locations. You are not limited to a burger just because you are showing up after breakfast hours. That matters when the lower-calorie options you actually want happen to be on the breakfast side of the menu.
Frequently Asked Questions
What is the lowest-calorie item at Jack in the Box?
The side salad at 20 calories (without dressing) is the lowest. Among items that function as actual meals or snacks, the hash browns at 190 calories and a single egg roll at 200 calories are the lightest options.
Does Jack in the Box have healthy options?
It depends on your definition of healthy. There are several items under 400 calories with solid protein—the Breakfast Jack, Supreme Croissant, and Jumbo Jack without cheese are the standouts. The Grilled Chicken Sandwich at 490 calories delivers the highest protein on this list at around 30 grams.
Can I eat at Jack in the Box on a diet?
Yes, with some menu awareness. The items on this list give you real food with manageable calorie counts. The traps to avoid are the large combo drinks, anything “loaded” or “grande,” and the Jumbo Breakfast Platter if you are watching numbers.
What is the best low-calorie breakfast at Jack in the Box?
The Breakfast Jack at 350 calories is the best combination of calories, protein, and taste. The Supreme Croissant at 370 calories is worth the extra 20 calories if you want something that feels more premium. Both are available all day through the drive-thru.
Does Jack in the Box serve low-calorie items all day?
Most of the items on this list — including the breakfast sandwiches — are available all day through the drive-thru at most Jack in the Box locations. The all-day menu is one of the things that genuinely sets this chain apart.
Conclusion
Eating under 500 calories at Jack in the Box is not difficult — it just requires knowing which items to order. The Breakfast Jack, Jumbo Jack without cheese, Supreme Croissant, and Grilled Chicken Sandwich are the main event options. The nuggets, egg roll, and hash browns fill the sides and snack gaps.
None of these feels like diet food. That is the point. The best low-calorie fast-food order is the one you actually want to eat, not the one you settle for.
Pro Tip: Always download our Nutrition PDF to your phone. It’s the smartest way to handle a midnight run without the “what did I just eat?” anxiety.
Calorie counts are based on standard menu preparation and may vary by location.
