Jack in the Box vs Wendy’s: Which Is Healthier?
Jack in the Box and Wendy’s both sell a signature square-ish burger and a premium chicken sandwich. The burgers are close; the chicken is not.
Key takeaways
- Burgers: Jumbo Jack 520 calories (700 mg sodium) vs Wendy’s Dave’s Single 560.
- Chicken: Wendy’s Classic Chicken Sandwich is 550 calories; Jack in the Box’s Cluck Sandwich is 710 and Jack’s Spicy Chicken 690.
- Sodium is high on both chicken sandwiches: 1,630 mg at Wendy’s, 1,610 mg for the Cluck.
At a glance
| Order | Calories | Sodium |
|---|---|---|
| Jack in the Box Jumbo Jack | 520 | 700 mg |
| Wendy’s Dave’s Single | 560 | — |
| Wendy’s Classic Chicken Sandwich | 550 | 1,630 mg |
| Jack in the Box Cluck Sandwich | 710 | 1,610 mg |
| Jack’s Spicy Chicken Sandwich | 690 | 1,360 mg |
| Jack in the Box medium fries | 430 | 780 mg |
Jack in the Box from its official 2025 Nutrition Facts PDF. Wendy’s from its U.S. order pages as cited in our other Wendy’s comparisons (checked October 2026); Dave’s Single sodium not shown where our source did not cite it.
Burgers: a 40-calorie difference
The Jumbo Jack is 520 calories with 10 g saturated fat and 700 mg sodium. Wendy’s lists Dave’s Single at 560 calories. Forty calories is noise; the Jumbo Jack’s lower sodium is the more meaningful difference.
Chicken: Wendy’s by 160
Wendy’s Classic Chicken Sandwich is 550 calories with 1,630 mg sodium. Jack in the Box’s Cluck Sandwich is 710 calories with 1,610 mg; Jack’s Spicy Chicken is 690 with 1,360 mg. If chicken is your order, Wendy’s is the lighter stop on calories, though not on sodium. Both appear in our chicken sandwich ranking.
Sides
Jack in the Box lists medium fries at 430 calories and 780 mg sodium. Whichever burger or sandwich you choose, the fries and drink are what turn a 500-calorie order into a 1,000-calorie one.
When the bigger goal is eating less fast food
Swapping one chain for the other changes a meal, not the routine that puts you in the line. If you keep comparing chains because the habit keeps pulling you back, the variable that matters is the trigger: the time, the route, the tired end of the day. Pick the lighter order when you go, and work on how often you go.
Frequently asked questions
Is Jack in the Box healthier than Wendy’s?
For the signature burger, slightly (Jumbo Jack 520 vs Dave’s Single 560). For chicken, no: Wendy’s Classic Chicken is 550 calories vs 710 for the Cluck Sandwich.
Which has more sodium, Wendy’s or Jack in the Box chicken?
They are nearly tied: Wendy’s Classic Chicken Sandwich lists 1,630 mg and Jack in the Box’s Cluck Sandwich 1,610 mg.
Sources and method
- Jack in the Box — 2025 Nutrition Facts (PDF, effective November 2024)
- Wendy’s — Dave’s Single and Classic Chicken Sandwich, U.S. order pages (checked October 2026)
Reviewed October 19, 2026. Named U.S. items and published portions; menus and recipes change. This article compares specific orders and does not provide an overall health score for either chain.
Related reading
If the real question is how to eat less of it, start with what to expect when you cut back: fast food withdrawal symptoms, week by week and what happens to your body from day 1 to 90.