Guide
Allergen Labeling for Restaurants: The FDA Top-9 Explained
Roughly one in ten US adults has a food allergy, and for them your menu is a safety document. The 'Top-9' — the nine major allergens US federal law recognizes — is the vocabulary every kitchen should be fluent in. This guide covers what the nine are, what the law actually requires of restaurants (less than most owners assume, and more than none), and how to build a disclosure practice that protects your guests and your business. It's educational, not legal advice — for obligations in your jurisdiction, check the regulations that apply to you.
The nine major allergens
US federal law recognizes nine major food allergens: milk, eggs, fish, crustacean shellfish, tree nuts, peanuts, wheat, soybeans, and sesame. Sesame is the newest — added by the FASTER Act, effective 2023 — and the one kitchens most often miss, because it hides in buns, tahini, spice blends, and garnishes. Together the nine account for the large majority of serious food-allergy reactions in the US. Note the boundaries: crustacean shellfish (shrimp, crab, lobster) is the listed category, and 'tree nuts' spans everything from almonds to cashews — each with its own allergic population.
What federal law requires — and what it doesn't
Here's the part that surprises owners: the federal allergen labeling law (FALCPA, extended by the FASTER Act) applies to packaged foods, not to restaurant menus. There is currently no federal rule forcing you to print allergen tags next to your nachos. But that's not the end of the story — state and local rules vary and are tightening (California's SB 68 is the prominent example), the FDA Food Code that most states adopt expects staff to be trained on allergen awareness, and ordinary negligence liability applies everywhere: if a guest asks and gets a wrong answer, the absence of a labeling mandate won't help you. Check your state and local requirements specifically.
Why disclose on the menu anyway
Voluntary menu disclosure is becoming the standard diners expect, and it's good business. Allergic diners (and the parents of allergic kids) actively choose venues where they can see what's safe before they walk in — and they're loyal to places that take it seriously. It also protects your staff: a menu that states allergens per item turns the risky verbal game of 'is there sesame in that?' into a documented answer. And it future-proofs you against the regulatory direction of travel, which is clearly toward mandatory disclosure.
Audit your recipes, not your assumptions
Allergen tagging is an ingredient-level exercise. Go dish by dish through actual recipes and actual supplier labels — not memory. The classic misses: Worcestershire sauce (fish), miso and many marinades (soy), fried items sharing oil with breaded ones (wheat, and cross-contact generally), egg wash on buns, sesame oil in dressings, and 'natural flavor' lines on supplier packaging that need a phone call to resolve. When a supplier substitutes a product, your tags can silently go stale — which is why the audit needs to be a repeatable process, not a one-time binder.
Keep a record of what you declared and when
If a guest ever has a reaction, the questions will be: what did your menu say that night, and when did it last change? A paper menu can't answer that. Whatever system you use, keep a trail of allergen changes — what was tagged, who changed it, when. Digital menus make this nearly free: BarMenu.digital, for instance, auto-suggests FDA Top-9 and EU-14 tags per item, has you confirm each one, and records every change in an audit trail. However you do it, the discipline is the same: declared allergens should be traceable to a dated decision, not folklore.
Train the floor — the menu is only half the system
A perfectly tagged menu fails if a server shrugs and guesses. Train staff on three behaviors: never guess (go ask the kitchen), flag allergy orders explicitly so the kitchen can manage cross-contact, and know that 'a little bit' is not a safe amount for a true allergy. Cross-contact — shared fryers, shared prep surfaces, a garnish tweezered with the same tongs — causes reactions even when the recipe itself is clean, so either control it or say honestly that you can't guarantee against it. Menu disclosure sets expectations; the floor and kitchen deliver on them.
Put your menu behind one QR code
BarMenu.digital builds your live QR menu with auto-suggested allergen tags (FDA Top-9 / EU-14) and an audit trail — editable from your phone, 86 items in one tap.
Create your menu →Frequently asked
What are the FDA Top-9 allergens?
Milk, eggs, fish, crustacean shellfish, tree nuts, peanuts, wheat, soybeans, and sesame. Sesame became the ninth federally recognized major allergen under the FASTER Act, effective 2023.
Are restaurants required to label allergens on menus in the US?
Federal packaged-food labeling law doesn't apply to restaurant menus, and there's no nationwide menu-labeling mandate today — but state and local rules vary and are tightening (see California's SB 68), and general liability applies regardless. Check the rules for your jurisdiction.
What's the easiest way to add allergen labels to a bar menu?
Audit each recipe against the Top-9 using supplier labels, then publish the tags on a digital menu so updates are instant. Tools like BarMenu.digital auto-suggest tags per item and keep an audit trail of every change you confirm.