The Daily Vitality Score was built for packaged foods, where every product has a weight, a single ingredient list and a Nutrition Facts panel. Restaurant tacos have none of those in a tidy form, so this ranking uses a restaurant adaptation of the formula. Here is how it works, in plain terms.
Why per taco instead of per 100 grams. Our grocery rankings score food per 100 g so that a large bag and a small bag are compared fairly. Taco Bell's nutrition guide doesn't publish serving weights, so that wasn't possible here. Instead, every taco is scored as one taco, the way you actually order it, with end points anchored to the FDA's Daily Values.
Nutrients (75 points). Four components reward keeping amounts low, with each end point set at or near half of the relevant FDA Daily Value:
Points scale in a straight line between the end points. The 140 mg sodium mark matches the FDA's definition of "low sodium" per serving. Fiber and protein are measured per 100 calories, so a bigger taco doesn't earn extra credit just for being bigger. Taco Bell lists added sugars, which we used; Del Taco and Jack in the Box list only total sugars, which we used and marked with an asterisk. Every taco in the field has 2 g of sugar or less, so the difference doesn't change any ranking.
Ingredients (25 points). A taco is an assembly of parts (shell, protein, cheese, sauce, toppings), each with its own ingredient statement. Two components capture that:
- Shell first ingredient (10 points). A shell whose first ingredient is corn, corn masa or another whole grain earns 10. A shell that starts with enriched or refined wheat flour earns 0.
- Ultra-processing markers (15 points). We counted distinct markers across all of a taco's component statements, using the ingredient and additive classes identified by Monteiro and colleagues in Public Health Nutrition, such as maltodextrin, dextrose, hydrolyzed proteins, flavor enhancers, colors and thickening gums. Each marker costs 3.75 points, with a floor of zero.
The ingredient-count component from the grocery version is dropped for restaurant items, since a list stitched together from five components isn't comparable to a single packaged list.
Bands. 85 to 100 is Excellent, 70 to 84 Good, 55 to 69 Fair, 40 to 54 Weak and under 40 Poor.
What's in and what's out. We started from each chain's current US taco menu and kept only tacos with both a current nutrition row and component ingredient statements. Taco John's was left out because it publishes no ingredient statements. Two Taco Bell Cantina Chicken tacos were left out because the menu's calorie figures don't match the nutrition guide. Nutrition data was captured September 29 and 30, 2026.
If you've read our first ranking in this series, the approach will feel familiar, with the restaurant changes above.
Lay's vs. Doritos vs. SunChips: 16 Popular Chips Scored Out of 100 shows the original per-100 g version of the formula at work.