Is Big Mac Soy Free?

Ingredients
Big Mac Bun (WHEAT Flour (Wheat Flour. Calcium Carbonate, Niacin, Iron, Folic Acid, Thiamin), Water, Sugar, Cream Yeast, SESAME Seeds, Vegetable Oil (Rapeseed, Coconut), Potato Starch, Salt, Emulsifier (Mono - and Diacetyl Tartaric Acid Esters of Mono - and Diglycerides of Fatty Acids), Pea Protein, Antioxidant (Ascorbic Acid), Maize Maltodextrin, Dextrose, Maize Starch, WHEAT Starch, Natural Flavouring), Beef Patty (100% Pure Beef), Iceberg Lettuce, Big Mac Sauce (Water, Rapeseed Oil, Gherkin, Spirit Vinegar, Sugar, Modified Maize Starch, Allergen Ingredient:Free Range EGG Yolk, Spices (contain Allergen Ingredient:MUSTARD), Salt, Glucose-Fructose Syrup, Thickener (Xanthan Gum), Natural Flavourings, Firming Agent (Calcium Chloride)), Cheddar Cheese Slices (Vegetarian Cheddar (51%) (MILK), Water, Vegetarian Cheese (9%) (MILK), Whey Powder (MILK), Butter (MILK), Emulsifying Salts (Trisodium Citrate, Tripotassium Citrate, Citric Acid), Milk Protein (MILK), Natural Cheese Flavouring (MILK), Salt, Colours (Carotene, Paprika Extract), Anti-Caking Agent (Lecithins)), Pickle Slices (Gherkins, Water, Spirit Vinegar, Salt, Firming Agent (Calcium Chloride), Natural Flavouring, Preservative (Potassium Sorbate)), Onions


