Five Guys Dietary & Allergen Guide

A practical overview of allergens, peanut oil, gluten-conscious ordering, vegetarian options, bunless ordering, and halal availability by country. Not medical advice.

Allergen information

Five Guys publishes an official nutrition and allergen guide listing which ingredients contain milk, wheat, egg, and peanut. Cross-contact is possible throughout the kitchen — shared grills, shared toppings stations, and shared fryers — so the official guide is the right place to check your specific allergy before ordering, not general assumptions based on a single ingredient.

Peanut oil

All Five Guys fries, in every style and size, are cooked in 100% refined peanut oil. Five Guys states tree nuts are not used in its menu items, but it explicitly acknowledges a cross-contamination risk for people with peanut allergies.

Gluten-conscious ordering

The standard bun contains wheat, but the fries themselves do not contain gluten as an ingredient. Burgers, hot dogs, and sandwiches can all be ordered bunless — as a Burger Bowl or wrapped in lettuce — which is a practical option for gluten-conscious ordering. This is not marketed as a certified gluten-free kitchen, and cross-contact is still possible.

Vegetarian options

The Veggie Sandwich, Cheese Veggie Sandwich, and Grilled Cheese are the main non-meat items on the menu. Five Guys states its cheese is made without meat-based enzymes. There is no separate vegetarian prep station, so cross-contact with grilled meat on shared equipment is possible. See our sandwiches guide for details on each item.

Bunless / low-carb ordering

Any burger, hot dog, or sandwich can be ordered as a Burger Bowl or in a lettuce wrap instead of on a bun. This is a practical choice for lower-carb ordering, though it is not a certified gluten-free preparation and doesn’t change the ingredients used inside.

Halal by country

Halal availability is not consistent worldwide. In the U.S., Five Guys states its beef is not certified kosher, halal, or organic. In the UK, some locations serve halal beef, with a small number fully certified by a recognized halal certification body, and others serving halal beef alongside pork and alcohol on the same premises. See our halal guide for the full country-by-country breakdown — do not assume one country’s policy applies to another.