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Subway Keto and Low-Carb Guide

By the MacroTray editorial team · Updated · Data: Subway U.S. Nutrition Information (October 2026)

Sub sandwich with lettuce, tomato and cheese
Illustrative photo

Strict keto diets commonly aim for roughly 20 to 50g of net carbs per day; moderate low-carb plans often allow more. This ranking shows the Subway meals with the fewest net carbs, from official data.

Key takeaways

  • Lowest net carbs: Tuna Salad with 6g.
  • Bread, buns, tortillas, rice, fries and sugary sauces are where most carbs come from.
  • Use the calculator to remove carb-heavy parts and see the new total.

Meals with the fewest net carbs

#OrderNet carbsProteinCalFat
1Tuna Salad6g21g40031g
2Tuna Protein Bowl6g39g73061g
3Oven-Roasted Turkey Salad7g20g40032g
4Cold Cut Combo® Salad7g19g46038g
5B.L.T. Salad7g13g42036g
6Oven-Roasted Turkey Protein Bowl7g37g54040g
7B.L.T. Protein Bowl7g22g56049g
8Grilled Chicken Salad8g26g45034g
9Turkey & Ham Salad8g20g40032g
10Grilled Chicken Protein Bowl8g48g62044g
Sauces and dressings can carry sugar. Check them in the calculator before adding.

Frequently asked questions

What is the lowest-carb meal at Subway?

Tuna Salad has the fewest net carbs among full meals in our data: 6g net carbs.

What are net carbs?

Net carbs are total carbohydrates minus dietary fiber. Many low-carb and keto eaters count net carbs.

Open the Subway calculator →

More Subway guides

Same guide for other restaurants