In and Out Allergen Menu

In and Out Allergen Menu — Complete Guide for Every Dietary Need

Looking for the complete In and Out allergen menu for 2026? Whether you have a food allergy, follow a specific diet, or simply want to know exactly what is in your food — this guide covers everything you need to order safely and confidently at In-N-Out Burger.

In-N-Out has one of the simplest ingredient lists among major fast food chains. The cuisine is concise and straightforward, with no chemical additions, preservatives, or mysterious ingredients. This is actually easier to navigate for persons with dietary requirements than businesses with hundreds of menu items and extensive ingredient descriptions.

This page includes a detailed allergen table for each menu item, gluten free ordering alternatives, vegetarian and vegan options, keto and low carb options, dairy free ordering, egg free options, soy free options, and a comprehensive list of safe ordering advice for clients with severe food allergies.

In and Out Full Allergen Table

The table below covers all major allergens for every item on the In-N-Out menu. Allergen information is based on official In-N-Out nutrition and allergen data. YES means the item contains that allergen. NO means it does not contain that allergen as an ingredient — but cross-contamination is always possible.

Menu Item	Gluten/Wheat	Dairy/Milk	Eggs	Soy	Peanuts	Tree Nuts	Fish	Shellfish
Hamburger (with bun)	YES	NO	YES	YES	NO	NO	NO	NO
Cheeseburger (with bun)	YES	YES	YES	YES	NO	NO	NO	NO
Double-Double (with bun)	YES	YES	YES	YES	NO	NO	NO	NO
Any Burger — Protein Style	NO	Varies	YES	NO	NO	NO	NO	NO
Flying Dutchman	NO	YES	NO	NO	NO	NO	NO	NO
Grilled Cheese (with bun)	YES	YES	YES	YES	NO	NO	NO	NO
Beef Patty (plain only)	NO	NO	NO	NO	NO	NO	NO	NO
American Cheese	NO	YES	NO	NO	NO	NO	NO	NO
Signature Spread	NO	NO	YES	NO	NO	NO	NO	NO
Hamburger Bun	YES	NO	NO	YES	NO	NO	NO	NO
Lettuce	NO	NO	NO	NO	NO	NO	NO	NO
Tomato	NO	NO	NO	NO	NO	NO	NO	NO
Raw Onion	NO	NO	NO	NO	NO	NO	NO	NO
Grilled Onion	NO	NO	NO	NO	NO	NO	NO	NO
Pickles	NO	NO	NO	NO	NO	NO	NO	NO
Chopped Chilies	NO	NO	NO	NO	NO	NO	NO	NO
French Fries	NO	NO	NO	NO	NO	NO	NO	NO
Animal Style Fries	NO	YES	YES	NO	NO	NO	NO	NO
Cheese Fries	NO	YES	NO	NO	NO	NO	NO	NO
Chocolate Milkshake	NO	YES	YES	NO	NO	NO	NO	NO
Vanilla Milkshake	NO	YES	YES	NO	NO	NO	NO	NO
Strawberry Milkshake	NO	YES	YES	NO	NO	NO	NO	NO
Fountain Drinks (all)	NO	NO	NO	NO	NO	NO	NO	NO
Lemonade / Lite Lemonade	NO	NO	NO	NO	NO	NO	NO	NO
Coffee (Hot)	NO	NO	NO	NO	NO	NO	NO	NO
Hot Cocoa	NO	YES	NO	YES	NO	NO	NO	NO
Milk (Carton)	NO	YES	NO	NO	NO	NO	NO	NO
Iced Tea (Unsweetened)	NO	NO	NO	NO	NO	NO	NO	NO

Key Facts: In-N-Out does NOT use peanuts, tree nuts, fish, or shellfish in any menu items. The only gluten source is the hamburger bun. The only egg source is the signature spread. Soy is present only in the bun and hot cocoa.

In and Out Gluten Free Menu Options

In-N-Out is one of the most gluten-friendly fast food restaurants in the United States. The hamburger bun is the only gluten-containing item on the whole menu. Everything else—beef patties, cheese, spread, vegetables, fries, beverages, and shakes—is gluten-free.

Safe Gluten Free Items at In and Out

Item	Gluten Free?	Notes
Any Burger — Protein Style (lettuce wrap)	YES	Removes bun — the only gluten source
Flying Dutchman	YES	No bun — pure beef and cheese
French Fries (all styles)	YES	Dedicated fryer, sunflower oil, no gluten
Animal Style Fries	YES	Cheese, onions, spread — no gluten ingredients
Cheese Fries	YES	No gluten ingredients
All Milkshakes	YES	Real dairy ice cream, no gluten
All Fountain Drinks	YES	No gluten
Lemonade / Lite Lemonade	YES	No gluten
Coffee / Decaf Coffee	YES	No gluten
Iced Tea (Unsweetened)	YES	No gluten
Milk (Carton)	YES	No gluten
Beef Patty (plain)	YES	100% beef, no fillers
American Cheese	YES	No gluten ingredients
Signature Spread	YES	No gluten — contains egg
All fresh toppings (lettuce, tomato, onion, pickles)	YES	No gluten

Items That Contain Gluten — Avoid These

Item	Contains Gluten?	Why
Hamburger Bun	YES	Primary gluten source — wheat flour
Any burger served with standard bun	YES	Bun contains wheat
Hot Cocoa	Check with staff	May vary by mix used — confirm at location

Gluten Free Ordering Tips at In and Out

When ordering gluten-free at In-N-Out, always make your allergy obvious to the staff. ‘I have a gluten sensitivity – can you kindly make my burger Protein Style and change your gloves before processing my order?’ In-N-Out staff is trained to manage allergy requests, and most stores have numerous griddles, allowing them to cook your burger separately from other orders.

Also request that your toppings be pulled from fresh bins and that your fries be confirmed as coming from the dedicated sunflower oil fryer. While cross-contamination risk is low at In-N-Out compared to most fast food chains, no guarantee of a completely gluten-free environment can be made.

In and Out Vegetarian Menu Options

In-N-Out Burger has a surprisingly good selection of vegetarian alternatives for a burger establishment. While the menu is primarily meat-based, there are numerous true vegetarian options that are very delicious and flavourful. Here's the ultimate vegetarian guide to In-N-Out.

Vegetarian Items at In and Out

Item	Vegetarian?	Price	Notes
Grilled Cheese	YES	$3.15	Toasted bun + cheese + lettuce + tomato + onion + spread. No meat.
Veggie Burger	YES	~$3.00	Bun with spread, lettuce, tomato, onion — no patty, no cheese
French Fries (all styles)	YES	$1.65	Cooked in sunflower oil — no animal products
Cheese Fries	YES	$3.50	Fries with melted cheese — vegetarian
Animal Style Fries	YES	$4.25	Fries + cheese + grilled onions + spread — vegetarian
All Milkshakes	YES	$2.75	Real dairy — vegetarian but not vegan
All Fountain Drinks	YES	$1.65+	No animal products
Lemonade / Lite Lemonade	YES	$1.75+	No animal products
Coffee / Tea / Hot Cocoa	YES	$1.50+	No meat — hot cocoa contains dairy
Milk (Carton)	YES	$1.00	Dairy — vegetarian
All fresh toppings	YES	Free	Lettuce, tomato, onion, pickles, chilies

Best Vegetarian Meal at In and Out

The Grilled Cheese Animal Style is the greatest vegetarian meal at In-N-Out, featuring a toasted sandwich with melted American cheese, lettuce, tomato, grilled onions, pickles, and additional spread. Pair it with Animal Style Fries and a Vanilla Milkshake for a completely vegetarian dinner that is rich, fulfilling, and distinct to In-N-Out.

How to Order: Say ‘Grilled Cheese Animal Style’ — staff will know exactly what to make. For a simpler version say ‘Grilled Cheese’ for the standard build with no animal style upgrades.

Vegetarian Ordering Tip

If you are vegetarian and concerned about meat contact, ask staff to prepare your order on the onion side of the grill — In-N-Out grills have two sides and the onion side does not have direct meat contact. This is especially useful for the Grilled Cheese or Veggie Burger.

In and Out Vegan Menu Options

In-N-Out has very limited but real vegan options. The menu is heavy on animal products but the fries and some drink items are genuinely vegan-friendly. Here is the complete vegan guide for In-N-Out.

Vegan Items at In and Out

Item	Vegan?	Notes
French Fries (plain)	YES	Potatoes + sunflower oil + salt — 100% vegan
Light Fries	YES	Same ingredients — vegan
Well Done Fries	YES	Same ingredients — vegan
Lemon Fries	YES	Fries + lemon juice — vegan
Fries with Chopped Chilies	YES	Fries + yellow peppers — vegan
Veggie Burger (no spread, no cheese)	YES	Bun + lettuce + tomato + onion — vegan if no spread
All Fountain Drinks	YES	No animal products
Lemonade / Lite Lemonade	YES	No animal products
Iced Tea (Unsweetened)	YES	No animal products
Coffee / Decaf Coffee (black)	YES	No animal products
Fresh toppings only (lettuce, tomato, onion, pickles, chilies)	YES	All plant-based

Items That Are NOT Vegan

Item	Not Vegan — Why
All beef patties	Animal product — beef
American Cheese	Dairy product
Signature Spread	Contains eggs (mayonnaise base)
All Milkshakes	Real dairy ice cream
Hot Cocoa	Contains dairy milk
Milk (Carton)	Dairy
Animal Style Fries	Contains spread (eggs) and cheese (dairy)
Cheese Fries	Contains American cheese (dairy)

Best Vegan Order: Plain French Fries + Lemon Fries upgrade + Unsweetened Iced Tea. For a more filling vegan meal, order a Veggie Burger with no spread, no cheese, just bun + lettuce + tomato + onion + pickles + mustard instead of spread.

In and Out Keto Menu — Low Carb Options

In-N-Out is one of the greatest fast food restaurants for keto and low-carb diets. The Protein Style customisation removes the bread from any burger, and the Flying Dutchman secret menu item contains almost no carbohydrates. Here is a comprehensive keto guide for In-N-Out.

Best Keto Items at In and Out

Keto Item	Carbs (g)	Calories	Protein (g)	Keto Rating
Flying Dutchman	2g	520 cal	33g	★★★★★ Best keto item
Protein Style Hamburger (no spread)	8g	150 cal	10g	★★★★★ Lowest carb
Protein Style Hamburger	9g	210 cal	12g	★★★★★ Great keto choice
Protein Style Cheeseburger	11g	280 cal	16g	★★★★★ Solid keto option
Protein Style Double-Double	12g	460 cal	30g	★★★★☆ High protein keto
Protein Style 3×3	13g	710 cal	44g	★★★★☆ Filling keto meal
Protein Style 4×4	14g	900 cal	56g	★★★☆☆ High cal but low carb
Scooby Snack (solo patty)	0g	~100 cal	10g	★★★★★ Pure protein snack
Unsweetened Iced Tea	0g	0 cal	0g	★★★★★ Perfect keto drink
Black Coffee	1g	5 cal	0g	★★★★★ Perfect keto drink
Diet Coke	0g	0 cal	0g	★★★★★ Zero carb drink
Light Fries (occasional)	45-48g	320-350 cal	5-6g	★★☆☆☆ Avoid if strict keto

Best Keto Meal: Flying Dutchman (2g carbs, 520 cal, 33g protein) + Unsweetened Iced Tea (0 carbs) = Total 2g net carbs. For a bigger keto meal add a Protein Style Double-Double Animal Style for approximately 13g total carbs and 63g protein.

How to Order Keto at In and Out

Simply order any burger and specify ‘Protein Style’ to have the bun replaced with a fresh lettuce wrap. This is the most essential customisation option for keto orders at In-N-Out. You can add flavour by combining Protein Style and Animal Style, or order the Flying Dutchman for a completely bun-free and bread-free choice.

Avoid the fries if you are strict keto as even Light Fries contain 45-48g of carbs. Stick to unsweetened drinks — Iced Tea, black Coffee, and Diet Coke all have zero or near-zero carbs.

In and Out Dairy Free Menu Options

Dairy-free ordering at In-N-Out is relatively straightforward. The main dairy sources are American cheese and milkshakes. Everything else on the menu — beef patties, buns, spread, fries, fountain drinks, and fresh toppings — contains no dairy ingredients.

Dairy Free Items at In and Out

Item	Dairy Free?	Notes
Hamburger (no cheese)	YES	Bun + beef + lettuce + tomato + onion + spread — no dairy
Hamburger Protein Style (no cheese)	YES	Lettuce wrap + beef + toppings + spread — no dairy
Double Meat (no cheese)	YES	Two patties, no cheese — no dairy
Flying Dutchman	NO	Contains American cheese
Hamburger Bun	YES	No dairy — not buttered
Beef Patty (plain)	YES	100% beef — no dairy
Signature Spread	YES	No dairy — contains egg
French Fries (all styles)	YES	Cooked in sunflower oil — no dairy
Cheese Fries	NO	Contains melted American cheese
Animal Style Fries	NO	Contains cheese and spread
All Fountain Drinks	YES	No dairy
Lemonade / Lite Lemonade	YES	No dairy
Coffee / Tea	YES	No dairy if ordered black
All Milkshakes	NO	Made with real dairy ice cream
Hot Cocoa	NO	Contains dairy milk
Milk (Carton)	NO	Dairy product

Best Dairy Free Order: Plain Hamburger (no cheese) + French Fries + Unsweetened Iced Tea. All three items are completely dairy-free. For a richer dairy-free meal, order a Double Meat (no cheese) Protein Style Animal Style — all toppings are dairy-free except cheese which you simply skip.

In and Out Egg Free Menu Options

The only egg-containing item at In-N-Out is the signature spread which is a mayonnaise-based Thousand Island style sauce. Removing the spread from any order makes it egg-free. Everything else on the menu contains no egg ingredients.

Item	Egg Free?	Notes
Any burger — no spread	YES	Request ‘no spread’ — free customization
Any burger — with spread	NO	Spread contains egg (mayonnaise base)
Burger with ketchup + mustard instead	YES	Replace spread with ketchup/mustard — egg free
Flying Dutchman (no spread)	YES	Ask for no spread — naturally egg free
French Fries (plain)	YES	No egg ingredients
Cheese Fries	YES	No egg — just cheese and fries
Animal Style Fries	NO	Spread is used in Animal Style — contains egg
All Milkshakes	YES	Dairy but no egg
All Fountain Drinks	YES	No egg
Lemonade / Coffee / Tea	YES	No egg

Egg Free Tip: Simply say ‘no spread’ when ordering any item. Replace with ketchup and mustard for a familiar flavor without any egg. This small change makes almost the entire In-N-Out menu egg-free immediately.

In and Out Soy Free Menu Options

Soy is present in two items at In-N-Out — the hamburger bun and the hot cocoa. Removing the bun by ordering Protein Style eliminates the main soy source. Everything else on the menu is soy-free.

Item	Soy Free?	Notes
Any Burger — Protein Style	YES	Lettuce wrap has no soy
Any Burger — standard bun	NO	Bun contains soy
Flying Dutchman	YES	No bun — no soy
Beef Patty (plain)	YES	100% beef — no soy
American Cheese	YES	No soy
Signature Spread	YES	No soy
French Fries (all styles)	YES	No soy
All Milkshakes	YES	No soy
All Fountain Drinks	YES	No soy
Hot Cocoa	NO	Contains soy
Coffee / Tea / Lemonade	YES	No soy

Safe Ordering Tips for Allergy Customers at In and Out

Step 1 — Tell Staff About Your Allergy

Always advise the clerk about your food allergy before placing an order. Say it clearly: "I have a [allergy] allergy; could you please accommodate this?" In-N-Out employees are trained to manage allergy requests and will notify the kitchen crew to take extra precautions with your order.

Step 2 — Request Glove Change

For severe allergies ask staff to change their gloves before preparing your order. In-N-Out policy allows this and most staff will do it without hesitation when asked politely. This significantly reduces cross-contact risk.

Step 3 — Request Clean Griddle

If you are allergic to gluten, dairy, or meat, you can request that your burger be cooked on a freshly cleaned griddle. Most In-N-Out restaurants have many griddles and will clean one specifically for your order if requested. This is especially crucial for consumers who suffer from coeliac disease or severe dairy sensitivity.

Step 4 — Request Fresh Topping Bins

For severe allergies ask staff to pull your toppings — lettuce, tomato, onion, pickles — from fresh untouched bins rather than the bins that have been open and potentially exposed to other allergens during service. This is a reasonable request that most locations will accommodate.

Step 5 — Avoid Peak Hours for Complex Allergy Orders

If you have severe allergies, consider going to In-N-Out during off-peak hours — mid-morning or mid-afternoon — when the kitchen is less crowded and personnel can offer your order more personal attention. Rush hour service makes sophisticated allergy accommodations more difficult to perform perfectly.

Step 6 — Confirm Your Order Before Eating

Before you eat, be sure your order is correct. Confirm that Protein Style was ordered, that no spread was specified, and that cheese was not used if dairy-free. Staff are human, and mistakes happen; a fast check prevents potential allergy exposure.

FAQ's

In and Out Allergen Menu — Frequently Asked Questions

Q1: Does In and Out have a gluten free menu?

Although In-N-Out does not have a certified gluten-free menu, practically everything on the menu is devoid of gluten-containing substances. The only source of gluten is the hamburger bun. Order any burger Protein Style and substitute the bun with a lettuce wrap. French fries are fried in gluten-free sunflower oil.

Q2: Is In and Out safe for celiac disease?

In-N-Out cannot guarantee a completely celiac-safe environment as cross-contamination is possible in shared kitchen spaces. However the chain is more accommodating than most fast food restaurants. Request a clean griddle, fresh toppings, and glove change when ordering. The Protein Style burger and plain fries are the safest choices. Always inform staff about celiac disease specifically.

Q3: Does In and Out have vegetarian options?

Yes. In-N-Out Burger offers two primary vegetarian options: the Grilled Cheese (toasted bun with cheese, lettuce, tomato, onion, and spread but no beef) and the Veggie Burger (bun with toppings but no burger or cheese). All fries, fountain drinks, lemonade, and coffee are vegetarian. Milkshakes are vegetarian, however they contain dairy.

Q4: Does In and Out have vegan options?

In-N-Out offers few but real vegan options. Plain French Fries are completely vegan, cooked in sunflower oil with no animal components. A Veggie Burger without spread or cheese (just the bun, lettuce, tomato, onion, and mustard) is likewise vegan. All fountain beverages, lemonades, and black coffee are vegan. Milkshakes, cheese, and spreads are not vegan.

Q5: Is In and Out good for a keto diet?

Yes. In-N-Out is one of the greatest keto-friendly fast food options. The Flying Dutchman (two patties, two cheeses, no bun) contains only 2 grams of carbohydrates. Any burger ordered Protein Style swaps the bun with lettuce, saving 25-30g of carbohydrates. Combine with unsweetened iced tea or black coffee for a complete keto supper with less than 15g of carbs.

Q6: Is In and Out dairy free?

In-N-Out is mostly dairy-free except for American cheese and milkshakes. Order any burger without cheese and it is dairy-free. The signature spread, beef patties, buns, fries, and fountain drinks all contain no dairy. Simply skip the cheese and milkshakes for a completely dairy-free meal.

Q7: Does In and Out use peanuts or tree nuts?

No. In-N-Out does not use peanuts, tree nuts, sesame, fish, or shellfish in any of its menu items. Their official allergen information indicates that normal ingredients include none of these allergies. This makes In-N-Out a relatively safe choice for anyone with nut or shellfish sensitivities.

Q8: What is in the In and Out spread — does it contain allergens?

In-N-Out’s famous spread is a Thousand Island-style sauce composed with mayonnaise, ketchup, and sweet pickle relish. It has eggs (from the mayonnaise), but no dairy, gluten, soy, or nuts. If you are allergic to eggs, request no spread and instead use ketchup and mustard, which are both egg-free.

Q9: Are In and Out fries gluten free?

Yes. In-N-Out french fries are gluten-free. They are made from fresh potatoes cut in-store and cooked in a dedicated fryer using 100% sunflower oil. No gluten-containing ingredients are used and the fryer is used only for fries — not for any other items. Cross-contamination risk is low but cannot be fully guaranteed.

Q10: How do I order for a food allergy at In and Out?

When ordering with a food allergy at In-N-Out, inform the cashier of your allergy, request a glove change, a freshly cleaned griddle for your burger, and fresh topping bins. Most In-N-Out establishments are well-versed in allergy accommodations. Always double-check your order before eating.

About This In and Out Allergen Guide

All allergen information on this page is derived from official In-N-Out Burger allergen data and publicly available nutrition information. Allergen information is validated using In-N-Out's official nutrition tools and cross-checked against numerous dietary guideline sources.

Allergen information can change due to ingredient substitutions, regional supplier changes, or menu updates. Always confirm current allergen details with In-N-Out staff at your specific location before ordering, especially for severe or life-threatening allergies.