Steak 'n Shake – They have an information page which covers items with listings of allergens per item, this list covers items such as wheat, soy, milk, eggs, tree nuts. hydrolyzed soy protein, MSG, soy, fish – you can find the information under MENU/INGREDIENTS & ALLERGENS – Peru, IL

MOD – under MENU towards the bottom of the page you can find NUTRITIONAL FACTS there you can find allergy information for the following: dairy, milk, eggs, gluten, wheat, shellfish, seafood, soy, nuts – the page also includes ingredients for the products – Glenview, IL

MOD – under MENU towards the bottom of the page you can find NUTRITIONAL FACTS there you can find allergy information for the following: dairy, milk, eggs, gluten, wheat, shellfish, seafood, soy, nuts – the page also includes ingredients for the products – Skokie, IL

MOD – under MENU towards the bottom of the page you can find NUTRITIONAL FACTS there you can find allergy information for the following: dairy, milk, eggs, gluten, wheat, shellfish, seafood, soy, nuts – the page also includes ingredients for the products – Naperville, IL

MOD – under MENU towards the bottom of the page you can find NUTRITIONAL FACTS there you can find allergy information for the following: dairy, milk, eggs, gluten, wheat, shellfish, seafood, soy, nuts – the page also includes ingredients for the products – Kilder, IL

MOD – under MENU towards the bottom of the page you can find NUTRITIONAL FACTS there you can find allergy information for the following: dairy, milk, eggs, gluten, wheat, shellfish, seafood, soy, nuts – the page also includes ingredients for the products – Vernon Hills, IL

MOD – under MENU towards the bottom of the page you can find NUTRITIONAL FACTS there you can find allergy information for the following: dairy, milk, eggs, gluten, wheat, shellfish, seafood, soy, nuts – the page also includes ingredients for the products – Orland Park, IL

MOD – under MENU towards the bottom of the page you can find NUTRITIONAL FACTS there you can find allergy information for the following: dairy, milk, eggs, gluten, wheat, shellfish, seafood, soy, nuts – the page also includes ingredients for the products – Gurnee, IL

MOD – under MENU towards the bottom of the page you can find NUTRITIONAL FACTS there you can find allergy information for the following: dairy, milk, eggs, gluten, wheat, shellfish, seafood, soy, nuts – the page also includes ingredients for the products – Naperville,IL

MOD – under MENU towards the bottom of the page you can find NUTRITIONAL FACTS there you can find allergy information for the following: dairy, milk, eggs, gluten, wheat, shellfish, seafood, soy, nuts – the page also includes ingredients for the products – Deerfield, IL