According to Taco Bell Nutrition Guide Fiesta Salsa contains a few other ingredients, including 'partially hydrogenated corn oil:
Tomatoes, White Or Yellow Onions, Cilantro. Fiesta Salsa Dressing: Diced Green Chili (Green Chilies, Citric Acid), Vinegar, Water, Diced JalapeƱo Chili, Partially Hydrogenated Corn Oil, Salt, Garlic Powder, Xanthan Gum, and Less Than 0.1% Sodium Benzoate Added As A Preservative
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