The Sonic allergen menu shows which of the 9 major food allergens are in each item, from milk and wheat to peanuts and sesame. Sonic fries in shared fryers with soy based shortening, grills buns on shared grills, and some churros and sauce packets carry peanut warnings.
This guide covers the Sonic allergen menu item by item: the 9 major allergens, a popular items chart, gluten free picks, shared fryers and how to order safely. We check it against the official Sonic allergen information; this page is independent and updated for October 2026.
See the Sonic guide, the Sonic menu prices and all restaurant allergen menus.
Big 9 allergens
What allergens are on the Sonic allergen menu?
Sonic and the 9 major food allergens
The Sonic allergen menu lists milk, eggs, wheat, soy, peanuts, fish and shellfish among its ingredients. Cross contact is still possible in every kitchen.
Sonic allergen menu at a glance
| Allergen | Used at Sonic? | Where you will find it |
|---|---|---|
| Milk | Used | Buns, breaded chicken, onion rings, ranch, ice cream |
| Eggs | Used | Churros, crispy tenders, slaw, several sauces |
| Wheat | Used | Buns, breading, most prepared items |
| Soy | Used | Fryer shortening, bun oil, margarine |
| Peanuts | Used | Limited edition churros; may contain warning on Signature Sauce |
| Tree nuts | Ask | Not itemized in the published guide, so ask staff |
| Fish | Used | Seasonal fish fillet |
| Shellfish | Used | Seasonal seafood and crab patty |
| Sesame | Ask | Not itemized in the published guide, so ask staff |
Chart
Sonic allergen chart for popular items
Which allergens each item contains
The Sonic allergen menu chart below shows the major allergens in Sonic's most popular items, so you can spot milk, egg, wheat and soy at a glance.
Sonic allergen menu chart
| Menu item | Contains |
|---|---|
| Sonic Cheeseburger | Wheat, milk, soy |
| Crispy Tenders | Wheat, egg, soy |
| Tots | Soy (shortening), shared fryer |
| Fries | Soy (shortening), shared fryer |
| Corn Dog | Wheat, ask about milk |
| Onion Rings | Wheat, milk |
| Ranch | Milk, egg |
| Breakfast Burrito | Wheat, egg, milk (cheese) |
| Slushes and lemonade | None of the 9 in the base |
| Blasts and shakes | Milk, plus mix-in allergens |
Items and recipes change, so always confirm with the latest official allergen guide before you order.
Gluten free
Is Sonic gluten free?
Gluten free picks and what to avoid
Sonic is a hard place to eat gluten free: fries and tots have no wheat ingredients, but they share fryers, and buns are toasted on shared grills.
Sonic gluten free guide
| Item | Gluten free? | Note |
|---|---|---|
| Fries and tots | No wheat | Shared fryer |
| Grilled patty, no bun | No wheat | Shared grill |
| Slushes | Yes | |
| All buns and breading | No | Contain wheat |
| Corn dogs | No | Contain wheat |
Allergy friendly
What can you eat at Sonic with a food allergy?
Picks by allergy and diet
With a food allergy you can still eat at Sonic: burgers without cheese, fries, tots, slushes for dairy free, and the table below covers each major allergy.
Sonic allergy friendly picks
| Allergy or diet | Safer picks | Avoid |
|---|---|---|
| Dairy free | Burgers without cheese, fries, tots, slushes | Breaded chicken, onion rings, ranch, ice cream |
| Egg free | Burgers, fries, tots, slushes | Churros, crispy tenders, slaw, sauces |
| Peanut and tree nut | Core burgers, fries and slushes | Churros, sauce packets, some ice cream mix-ins |
| Soy free | Hard, most items use soy oil | Fried and grilled items |
| Gluten free | Fries, tots, bunless patty | Buns, breading |
| Vegan | Fries, tots, slushes | Meat, dairy |
Cross contact
Does Sonic use shared fryers or peanut oil?
Fryers, oils and cross contact
Sonic cooks fried items in shared fryers with soy based shortening, and buns, meats and breads share the grill, so cross contact is likely.
Sonic fryer and oil facts
| Topic | What to know |
|---|---|
| Shortening | Dairy free, contains soy |
| Shared fryers | Yes |
| Peanut warning | Churros and some sauce packets |
How to order
How do you order safely from the Sonic allergen menu?
Step by step
To order safely from the Sonic allergen menu, check the official guide first, tell the staff about your allergy, ask for fresh gloves and keep your order simple.
- 1
Check the official guide
Open the latest Sonic allergen guide before you go.
- 2
Tell the staff
Say you have a food allergy at the start of your order.
- 3
Ask for fresh gloves
Ask the team to change gloves and use clean utensils.
- 4
Skip shared fryer items
Fried foods can share oil with allergens.
- 5
Keep it simple
Fewer sauces and toppings mean fewer hidden allergens on the Sonic allergen menu.
- 6
Carry your medicine
Bring epinephrine if your doctor prescribed it.
Official source
Where can you find the official Sonic allergen menu?
Official allergen and nutrition info
The official Sonic allergen menu information is published by Sonic online, and it is the source to trust because recipes change during the year.
Official source: Sonic nutrition and allergen info.
Since July 1, 2026, California requires restaurant chains with 20 or more locations to disclose the 9 major allergens for every standard menu item. Learn more in our California allergen menu law guide, or compare chains on our restaurant allergen menus hub.
Tips
Sonic allergen menu ordering tips
How to eat out safely
To use the Sonic allergen menu well, check it every visit, avoid shared fryer items if your allergy is severe, and order simple items without sauces.
- 1
Check every visit
Recipes change during the year.
- 2
Tell the staff
Say allergy, not preference.
- 3
Fresh gloves
Ask for a glove change.
- 4
Skip sauces
Sauces hide many allergens.
- 5
Ask about fryers
Shared fryers.
- 6
Use the app
Many apps show allergens.
- 7
Go off peak
Staff have more time.
- 8
Carry medicine
Bring your epinephrine.
Explore
Explore other allergen menus
Allergen guides for other popular chains
Eating out with a food allergy? These chains publish allergen information too, each with gluten free, dairy free and nut free picks.
In-N-Out
Gluten free: Protein StyleView allergen menu →
Qdoba
Gluten free: Bowls and cornView allergen menu →
Jersey Mike's
Gluten free: Gluten free rollView allergen menu →
CAVA
Gluten free: Most bowlsView allergen menu →
Panda Express
Gluten free: Plain rice onlyView allergen menu →
Chick-fil-A
Gluten free: GF bun and grilledView allergen menu →Explore
Explore more menu categories
Browse every guide on MenuWithPrice
FAQ
Sonic allergen menu FAQs
Q1Does Sonic have an allergen menu?
Yes. Sonic publishes allergen information online, and this Sonic allergen menu guide summarizes it item by item.
Q2Is Sonic gluten free?
Sonic is a hard place to eat gluten free: fries and tots have no wheat ingredients, but they share fryers, and buns are toasted on shared grills.
Q3Does Sonic use shared fryers or peanut oil?
Sonic cooks fried items in shared fryers with soy based shortening, and buns, meats and breads share the grill, so cross contact is likely.
Q4What can I eat at Sonic with a dairy allergy?
Safer dairy free picks include burgers without cheese, fries, tots, slushes.
Q5Is the Sonic allergen menu the same at every location?
Mostly. The Sonic allergen menu is set by the chain, but suppliers, regional items and limited time offers can differ, so check the Sonic allergen menu for your local store before you order.
Q6Is Sonic safe for peanut and tree nut allergies?
Core burgers, fries and slushes. Always confirm with staff.
