What allergens are present in the Breakfast Bagel? November 02, 2022 23:00 Updated Allergens – Egg, Milk, Soybeans, Wheat. Food sensitivities – Gluten, Sulfite Related articles Is the Breakfast Bagel spicy? Can McDonald’s® food be part of a healthy, balanced diet? Can I add extra (or remove) topping from my Breakfast Bagel? What do the Hojicha Soft Serve desserts contain?