Jack in the Box Guide
Best Protein-to-Calorie Ratio at Jack in the Box
The Jack in the Box item with the best protein-to-calorie ratio is the Soy Sauce, at 20g of protein per 100 calories.
Best Protein-to-Calorie Ratio Menu Items
| Item | Calories | Protein | P/100cal |
|---|---|---|---|
| Soy Sauce | 5 | 1g | 20g |
| Grilled Chicken Salad | 250 | 28g | 11.2g |
| Chicken Club Salad | 360 | 37g | 10.3g |
| Chicken Fajita Pita | 320 | 24g | 7.5g |
| Reduced Fat Milk Chug 2% | 120 | 9g | 7.5g |
| Sourdough Grilled Chicken Club | 540 | 39g | 7.2g |
| Real Swiss Cheese | 70 | 5g | 7.1g |
| Provolone Cheese | 60 | 4g | 6.7g |
| Ultimate Breakfast Sandwich | 520 | 33g | 6.3g |
| Bacon Ultimate Cheeseburger™ | 910 | 57g | 6.3g |
| Grilled Sourdough Swiss Sandwich | 580 | 36g | 6.2g |
| Bacon Cheddar Loaded Double Cheeseburger | 910 | 56g | 6.2g |
| Ultimate Cheeseburger™ | 820 | 50g | 6.1g |
| Chicken Strips | 560 | 33g | 5.9g |
| Southwest Chicken Salad | 500 | 29g | 5.8g |
Across all 133 menu items we track at Jack in the Box, the median is about 360 calories and 13g of protein — so the best protein-to-calorie ratio picks above are meaningfully different from a typical order, not just the default menu re-sorted.
Frequently Asked Questions
- What's the best best protein-to-calorie ratio option at Jack in the Box?
- The Jack in the Box item with the best protein-to-calorie ratio is the Soy Sauce, at 20g of protein per 100 calories.
- What else at Jack in the Box fits best protein-to-calorie ratio?
- The Grilled Chicken Salad is another strong pick — 250 calories, 28g protein.
Nutrition data verified August 31, 2026.