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Fast Food Calc

Taco Bell · United States · updated 2026-10-16

Low-Carb & Keto-Friendly Taco Bell Options

5 Taco Bell food and drinks with 10g of carbs or less, ranked by carbs, with fat and protein for keto and low-carb diets.

Mtn Dew Baja Blast Zero Sugar (20 oz) tops this list with 0g of carbohydrate. The list covers 3 drinks and 2 food items.

Top picks

  1. 1Mtn Dew Baja Blast Zero Sugar

    20 oz

    Carbs
    0 g
    Fat
    0 g
    Protein
    0 g
    Calories
    10 kcal
  2. 2Chili
    Carbs
    4 g
    Fat
    3.5 g
    Protein
    4 g
    Calories
    60 kcal
  3. 3Black Beans
    Carbs
    7 g
    Fat
    1.5 g
    Protein
    3 g
    Calories
    50 kcal

The full list (5)

How we picked: Items with 10g of total carbohydrate or less in their standard size, excluding zero-calorie drinks like water.

Low-Carb & Keto-Friendly Taco Bell Options
#
1Mtn Dew Baja Blast Zero Sugar20 oz00010
2Chili43.5460
3Black Beans71.5350
4Premium Roast CoffeeHot with creamer810.745
5Mtn Dew Baja Blast Zero Sugar Dirty Soda20 oz91060

Want to build a full order from this list? Open the Taco Bell calorie calculator.

How low is low-carb?

There’s no single definition, but ketogenic diets usually limit carbohydrate to about 20–50g a day, and broader low-carb diets to under 130g. A 10g item uses a meaningful slice of a keto budget, so the order you build around it matters.

1 item on this list has 1g of carbs or less. The highest-protein option is Chili with 4g of protein and 4g of carbs.

Total carbs, not net carbs

We rank by total carbohydrate exactly as the restaurant publishes it. “Net carbs” (total carbs minus fibre) isn’t an official nutrition-label figure and restaurants don’t publish it, so if you count net carbs your numbers will be a little lower.

Where hidden carbs come from

Most fast-food carbs come from bread, buns, tortillas, breading, rice, sugary sauces and sweetened drinks. Most of this list is proteins, eggs, salads, sauces and unsweetened drinks for that reason. Ordering a bowl instead of a burrito, or a lettuce wrap instead of a bun, at Taco Bell is usually the biggest swap you can make.

Frequently asked questions

What is the lowest-carb option at Taco Bell?

Mtn Dew Baja Blast Zero Sugar has 0g of carbs and 10 kcal.

Are these net carbs?

No, these are total carbohydrates as published by the restaurant. Net carbs subtract fibre, so they would be the same or slightly lower.

Is everything on this list keto-friendly?

Every item has 10g of carbs or less, which can fit most keto plans, but your daily total depends on everything you eat. Some items are low in carbs because they’re small (like sauces), so check portion and protein too.

More Taco Bell guides

Nutrition varies with preparation and customisation; this list is general information, not medical advice.

Source: Taco Bell Full Nutrition Information (official table on tacobell.com/nutrition/info, hosted by Nutritionix) (last updated 2026-10-15, retrieved 2026-10-16); Taco Bell item nutrition labels: ingredients & allergens (same official tool) (retrieved 2026-10-16); Taco Bell Allergen Information (retrieved 2026-10-16); tacobell.com national menu & product pages (menu scope, descriptions, combo contents) (retrieved 2026-10-16). Data checked 2026-10-16. Taco Bell is a trademark of its owner; Fast Food Calc is independent and not affiliated with Taco Bell.