FALCPA Compliance on Shopify: No App Does This Except One
FALCPA requires US food businesses to declare 9 major allergens on packaged food. The Shopify app store has no dedicated FALCPA compliance app — except Allergen Matrix, which covers US allergen law in its US compliance mode.
The Food Allergen Labeling and Consumer Protection Act (FALCPA) has been US law since 2004. It requires packaged food sold in the United States to declare the presence of 9 major allergens: milk, eggs, fish (by species), crustacean shellfish (by species), tree nuts (by type), wheat, peanuts, soybeans, and sesame (added under the FASTER Act in 2023).
American food businesses selling on Shopify are required to comply with FALCPA on their packaged products. They are also increasingly expected — and in some states required — to provide allergen information on their online product pages before customers purchase. The Shopify app ecosystem has not caught up with this need.
The Shopify FALCPA Gap
Search the Shopify App Store for FALCPA compliance tools. You will find generic nutrition apps that allow merchants to display nutrition facts panels — useful but not the same as allergen management. You will find dietary filter tools that allow customers to filter by vegan or gluten-free — helpful for navigation but not a compliance tool. You will not find a dedicated FALCPA compliance management system.
This gap affects tens of thousands of US food businesses selling on Shopify. Every artisan food producer, specialty food retailer, and packaged food brand selling online in the US is required to comply with FALCPA. Most are managing that compliance through product label review, spreadsheets, or manual product page updates — none of which scale well as product ranges grow.
The FASTER Act and Sesame
The FASTER Act of 2021 added sesame as the 9th major allergen under US law, effective January 1, 2023. This was a significant change: sesame is present in many Middle Eastern and Asian foods, in tahini, in some bread products, and as a flavouring in processed foods. Many food businesses were caught unprepared.
The sesame addition also created a counterintuitive compliance challenge: some manufacturers began adding sesame as a declared ingredient to products where it was previously an undeclared cross-contact risk — to avoid the "may contain sesame" label. This is legally compliant but has caused significant consumer and industry confusion.
A FALCPA compliance tool needs to handle sesame correctly: as a declared major allergen, with the same emphasis requirements as the other 8 allergens.
State-Level Requirements Adding to Federal Law
Beyond FALCPA, state-level legislation has added further requirements:
New York: New York State passed allergen labelling legislation that extends requirements beyond FALCPA in certain contexts, particularly for food service establishments and food sold at farmers markets.
California: California's Sherman Food, Drug, and Cosmetic Law incorporates FALCPA requirements and adds state-specific enforcement.
Various states: Continuing to add food safety legislation that references or extends federal allergen requirements.
A FALCPA compliance tool that only covers federal law is incomplete for food businesses operating in states with additional requirements.
What Allergen Matrix Does for US Food Businesses
Allergen Matrix includes a US compliance mode that configures allergen management for FALCPA requirements:
9 major allergen tracking: Milk, eggs, fish (by species), crustacean shellfish (by species), tree nuts (by type), wheat, peanuts, soybeans, and sesame — each managed at product level with declared status.
Species-level declaration: For fish and crustacean shellfish, FALCPA requires species-level naming (salmon, tuna, shrimp, crab — not just "fish" or "shellfish"). Allergen Matrix manages species-level declarations for these categories.
Tree nut variety tracking: Tree nuts must be identified by type (almond, cashew, walnut, pecan, etc.). Allergen Matrix handles this at the variety level within the tree nut allergen category.
Customer-facing product page display: FALCPA allergen information is displayed on Shopify product pages in the format expected by US consumers — "Contains: Wheat, Milk, Peanuts" style statements alongside the ingredient list.
Dual market management: For food businesses selling in both the UK and US markets, Allergen Matrix manages both the 14 UK/EU allergens and the 9 US FALCPA allergens simultaneously — displaying the appropriate set based on the customer's market.
The Practical Compliance Case
For a US food business on Shopify, the FALCPA question is not whether the law applies — it applies to all packaged food. The question is whether your Shopify product pages accurately and currently reflect your allergen declarations, and whether your physical labels stay aligned with those declarations when recipes change.
Allergen Matrix addresses both. The allergen record is the single source of truth. Product pages display from that record. When a recipe changes, one record update propagates everywhere.
How FALCPA Emphasis Requirements Work in Practice
FALCPA specifies not just which allergens must be declared but how they must be declared. The law requires that the major food allergen be identified by its common or usual name, and that declaration must appear either within the ingredient list using parenthetical notation — for example, "flour (wheat)" — or in a separate "Contains" statement immediately following or adjacent to the ingredient list. Both methods are legally valid, but whichever method a business chooses must be applied consistently and completely across all products.
The emphasis requirement is the part many smaller food businesses miss. Simply listing an allergen ingredient in a product description or in a general allergen statement buried in a footer is not sufficient under FALCPA. The declaration must be prominent, it must be adjacent to the ingredient information, and it must name the specific allergen in plain language. A product page that lists "tahini" in its ingredients without also stating "Contains: Sesame" or using parenthetical notation is not compliant, even if a well-informed consumer might recognise the connection.
For Shopify merchants, this creates a structural problem. Standard Shopify product pages are not designed to display ingredient lists and allergen declarations in the precise format FALCPA requires. Merchants who rely on product descriptions to carry this information have no systematic way to ensure every product page meets the formatting standard. Allergen Matrix solves this by generating the compliant "Contains" statement automatically from the allergen record and displaying it in a consistent, formatted block on every product page — separate from the general product description and in the correct position relative to ingredient information.
Managing Cross-Contact Declarations Alongside FALCPA Requirements
FALCPA governs the declaration of allergens that are intentional ingredients in a food product. It does not directly regulate advisory statements such as "may contain traces of peanuts" or "produced in a facility that also processes tree nuts." These advisory statements are voluntary under federal law, not mandated by FALCPA. However, the FDA has issued guidance indicating that advisory statements should only be used where a genuine cross-contact risk exists — using them as a blanket disclaimer without a real manufacturing risk is considered misleading and is actively discouraged.
For food businesses on Shopify, this creates a nuanced compliance picture. A merchant must ensure that FALCPA-required declarations are present and correctly formatted for every intentional allergen ingredient. Separately, they must decide — based on their actual manufacturing environment — whether advisory cross-contact statements are appropriate for specific products. These are two distinct types of information that should be managed and displayed separately, and conflating them creates both consumer confusion and potential regulatory exposure.
Allergen Matrix handles this distinction by allowing merchants to record intentional allergen declarations and cross-contact risk statements as separate data fields at the product level. The customer-facing display reflects both types of information clearly, using the standard "Contains" format for FALCPA declarations and a distinct advisory format for cross-contact statements where the merchant has indicated a genuine risk exists. This separation is not just good practice — it reflects the actual structure of US allergen law and the FDA's published guidance on advisory labelling.
Recipe Changes and the Ongoing Compliance Problem
FALCPA compliance is not a one-time task completed at product launch. Every time a recipe changes — a supplier substitutes an ingredient, a new processing aid is introduced, a formulation is adjusted for cost or availability — the allergen declaration must be reviewed and updated on both the physical label and every sales channel where the product appears. For Shopify merchants with growing product catalogues, this ongoing maintenance is where compliance most commonly breaks down.
The compliance risk created by recipe drift is significant. A product that was correctly labelled at launch can become non-compliant within weeks if a supplier changes a sub-ingredient without adequate notification. Food businesses are expected to have systems in place to catch these changes before products reach consumers. For businesses without a centralised allergen management system, that typically means manual cross-checking between supplier specifications, internal recipe documents, printed labels, and product page content — a process that is slow, error-prone, and impossible to audit reliably.
Allergen Matrix creates a single allergen record for each product that serves as the authoritative source for all downstream declarations. When a recipe change is identified — whether through a supplier notification, an internal reformulation, or a periodic specification review — the merchant updates one record. That update immediately reflects on the Shopify product page, ensuring that online declarations stay synchronised with the current product formulation. For businesses managing dozens or hundreds of SKUs, this centralised approach is not simply more convenient — it is the only realistic way to maintain continuous, auditable FALCPA compliance across a growing product range.
FALCPA and the Broader Food Safety Culture on Shopify
The absence of dedicated FALCPA compliance tooling in the Shopify ecosystem reflects a broader gap in how e-commerce platforms have approached food safety regulation. Shopify is an excellent commerce platform, but it was not built with food law in mind. The product page architecture, the metafield system, and the app ecosystem have all developed around retail and consumer goods use cases that do not carry the same regulatory burden as packaged food. This is not a criticism of Shopify — it is simply a recognition that food businesses have specific needs that general-purpose commerce tools were not designed to address.
For US food businesses, operating on Shopify without a compliance layer means carrying regulatory risk that accumulates silently as product ranges grow and recipes evolve. FALCPA enforcement by the FDA can include product recalls, warning letters, and import alerts — consequences that are entirely disproportionate to the cost of implementing a proper compliance system from the outset. The businesses most at risk are precisely those that have grown quickly on Shopify and have not had time to formalise their compliance processes alongside their commercial growth.
Allergen Matrix exists to close that gap — providing the compliance infrastructure that food businesses on Shopify need but cannot find elsewhere in the app ecosystem. It is built for the specific requirements of food law, not adapted from a generic tagging or nutrition tool, and it is designed to remain accurate as both product ranges and allergen regulations continue to evolve.
Try Allergen Matrix free at saltai.app — no credit card required.
SaltAI Team
SaltAI builds focused Shopify apps for food merchants and general merchants. Every app is tested in production at a real food store — including Vanda's Kitchen — before it ships.