Labeling law: why the back of the pack is a legal minefield

What the rules actually require

Nutrition panels

In the US, the FDA's Nutrition Facts Label format is prescribed down to font size and line spacing (21 CFR 101.9). The 2016 update (fully phased in by 2020, still the current standard in 2026) added "Added Sugars" as a mandatory line, forcing reformulation disclosures across the entire packaged food aisle.

In the EU, FIC requires a "Big 7" nutrition declaration: energy, fat, saturates, carbohydrates, sugars, protein, and salt, per 100g/100ml. Front-of-pack schemes like France's Nutri-Score (a letter-grade system, A to E) are voluntary at the EU level but increasingly a de facto requirement in specific markets because retailers demand it.

Ingredient lists

Both systems require descending order by weight. Both require allergen disclosure. The EU mandates 14 specific allergens be emphasized (bold, underlined, or a different font) directly in the ingredient list itself, not in a separate box. The US equivalent, under the FASTER Act (2021), added sesame as the ninth major allergen requiring disclosure, effective January 2023.

Miss an allergen and you're not looking at a fine. You're looking at a recall. Undeclared allergens are consistently the single largest cause of US food recalls tracked by the FDA's recall database.

Health and nutrient content claims

This is where most litigation lives. The FDA defines strict criteria for words like "healthy," "low fat," "light," and "natural" (the last of which, notably, still has no formal FDA definition as of 2026, creating years of consumer-lawsuit ambiguity). The FTC separately requires that any health claim be backed by "competent and reliable scientific evidence" before it reaches the package.

In the EU, the Nutrition and Health Claims Regulation (EC 1924/2006) is stricter still: a claim like "supports immune function" can only be used if the specific wording has been pre-approved and added to the EU Register of authorized health claims. Unauthorized claims are automatically illegal, no case-by-case argument required.

When labeling turns into litigation

The US has a distinctive risk multiplier: class action lawsuits, often under state consumer protection statutes (California's Unfair Competition Law is the most litigated). Plaintiffs' firms specifically monitor labels for phrases like "natural," "no added sugar," or "made with real fruit" that don't match ingredient reality.

Notable pattern cases:

• Vanilla flavor lawsuits: Dozens of companies (including major ice cream and beverage brands) were sued over "vanilla" claims when the flavor came partly from non-vanilla-bean sources. Many settled for seven-figure sums rather than litigate the science.
• POM Wonderful v. FTC (2015): The company's juice ads claimed to treat heart disease and cancer. The FTC's enforcement action was upheld by a federal appeals court, cementing that health claims need actual clinical substantiation, not just consumer perception.
• Kind LLC settlements: Beyond the FDA "healthy" issue, Kind separately settled a class action over "non-GMO" and "all natural" claims for several million dollars.

In the EU, enforcement tends to run through national authorities rather than private class actions, but the financial consequence is similar: product recalls, forced relabeling across an entire SKU range, and reputational damage that outlasts the fine itself.

A worked example: the cost of one wrong word

Assume a mid-size snack brand sells 5 million units per year of a bar labeled "healthy" that gets challenged and must be reformulated or relabeled.

• Cost to redesign packaging and update artwork across formats: estimate $150,000 to $400,000 (design, prepress, film/plate changes across SKUs and languages).
• Cost of existing inventory write-off or relabeling: assume 2 months of inventory at $0.05 relabel cost per unit affected = 830,000 units × $0.05 ≈ $41,500.
• Legal defense and settlement in a parallel class action: past FMCG label settlements have ranged from roughly $1 million to over $10 million depending on class size and claim (these are illustrative ranges based on publicly reported past settlements, not a specific case).

Even the low end of this stack (packaging plus relabeling alone, before any litigation) can exceed $200,000 for one mislabeled word. That is the cost of a comma-level compliance failure, before a single lawyer gets involved.

Who enforces what, in practice

| Body | Jurisdiction | Core power |

|---|---|---|

| FDA | US | Sets label format and content rules, can seize products, issue warning letters |

| FTC | US | Polices truthfulness of claims across all marketing, not just labels |

| State AGs / class action bar | US | Civil litigation under consumer protection laws, often the real financial risk |

| National food safety authorities (per EU member state) | EU | Enforce FIC and health claims regulation, coordinate recalls |

| European Food Safety Authority (EFSA) | EU | Scientifically evaluates and pre-approves health claims before authorization |

The practical lesson for anyone in FMCG: legal, regulatory affairs, and marketing must sign off on labels jointly, before print, not after a competitor's lawsuit reveals the gap. Reformulation to avoid a compliance threshold (like Kind lowering saturated fat to legitimately earn "healthy") is often cheaper than defending the claim.

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Key Takeaways

• Nutrition panels are format-prescribed (FDA 21 CFR 101.9 in the US, FIC Regulation 1169/2011 in the EU); getting the layout or mandatory nutrients wrong is a compliance violation regardless of intent.
• Health and nutrient claims ("healthy," "natural," "supports immunity") are the highest-risk zone: the EU requires pre-authorized claim wording via the EFSA-vetted Register, while the US relies on FDA definitions plus FTC substantiation standards and an active plaintiffs' bar.
• Undeclared allergens are the leading cause of food recalls in the US and carry mandatory emphasis requirements in the EU; this is a food-safety issue, not just a marketing one.
• US labeling risk is amplified by private class action litigation (state consumer protection laws), while EU enforcement runs primarily through national regulators and pre-market claim authorization.
• The cheapest compliance strategy is pre-launch legal, regulatory, and marketing sign-off; reformulating to legitimately earn a claim is almost always less expensive than defending a mislabeled one after the fact.