What Are Zero Carb Tortillas Made Of? | Inside The Wrapper

Most “zero net carb” tortillas are built on a clever formula: replace most of the flour with modified wheat starch and fiber, then use wheat gluten for structure and oil for flexibility. They mimic a flour tortilla’s texture while cutting digestible carbs to near zero. The catch is the label—it’s a marketing term, not a nutritional guarantee.

Here’s what’s actually inside the leading brands, why they’re not truly carb-free, and who should avoid them entirely.

The Common Ingredient Base

Commercial zero-net-carb tortillas share a core architecture. Manufacturers swap standard flour for a blend of starches and fibers the body doesn’t fully digest. The basic lineup includes:

• Modified wheat starch or resistant starch – the main flour replacement; resistant starch resists digestion
• Wheat gluten or wheat protein isolate – gives the tortilla structure and that chewy bite
• Cellulose or powdered fiber – boosts fiber to offset carb counts on labels
• Oil or shortening – keeps the dough pliable and soft
• Leavening, gums, and preservatives – small amounts for texture and shelf life

That formula explains the math behind “zero net carbs.” Fiber and resistant starch pass through largely undigested, so brands subtract them from total carbs. The result is a product with texture like a tortilla but far fewer digestible carbohydrates.

What The Big Brands Actually Use

Ingredient lists vary noticeably by brand. Here’s how three popular U.S. versions compare:

Notice the pattern: wheat is everywhere. Mission’s formula uses a wheat gluten isolate alongside modified food starch, per the brand’s zero net carbs product page. La Tortilla Factory leans on modified wheat starch and oat fiber, while La Banderita pairs resistant wheat starch with potato starch for a different fiber profile.

Not one of these is gluten-free. If you have celiac disease, a wheat allergy, or serious gluten sensitivity, these tortillas are off the table.

Reading The Fine Print

Two things trip people up. First, “zero net carb” never means zero total carbs—it’s a subtraction math game based on fiber content. Second, the formulas aren’t interchangeable for everyone.

La Tortilla Factory’s version includes sucralose, an artificial sweetener some people avoid. La Banderita uses allulose, a natural sweetener, but adds sodium metabisulphite. Mission’s vegetable shortening comes from soy. If you’re tracking allergens beyond wheat, always scan the full label rather than trusting the front-of-bag claim.

Homemade “zero carb” tortillas are a different animal entirely. Recipe sites typically build theirs from blanched almond flour, psyllium husk powder, and coconut flour—or even ground chicken and egg whites. Those are genuinely low-carb but carry their own texture quirks and don’t mimic commercial flour tortillas.

Are They Worth Trying?

For most people on low-carb or keto diets, yes. They deliver the tortilla experience without blowing your daily carb budget. If you’re shopping, our roundup of the best zero carb tortillas breaks down which brands hold up best for tacos, wraps, and burritos.

If you’re avoiding wheat or soy, skip them. Your gut—and your allergy list—will thank you.