"Plant-based" is a positioning term with no fixed legal definition — it signals a direction and commits to nothing, and products carrying it may lawfully contain dairy, egg or honey in most markets. "Vegan" commits to a boundary: no animal-derived ingredients, processing aids or (in the modern reading) animal testing. If your product genuinely meets the vegan boundary, the stronger claim is available — and a certified vegan claim is the version buyers can actually check.
Two terms doing two different jobs
The confusion between the terms is understandable because on many packs they point at the same recipe. But they answer different questions. Plant-based answers "what is this made from, mostly?" — it is a category signal, born in retail merchandising, useful for shelving a product next to oat drinks rather than dairy. Vegan answers "what is definitely not in this, anywhere in the process?" — it is a boundary claim addressed to people who need the answer to be complete: ethical vegans, buyers filling vegan tenders, and increasingly algorithms deciding whether your product matches a filtered search. A pack can carry either term, or both. The mistake is printing the soft term while needing the hard one, or the hard one while only being able to prove the soft one.
The legal picture: both undefined, one more exposed
Neither term has a statutory definition in the US or EU as of mid-2026. The difference is in how much a wrong claim costs. "Plant-based" is so elastic that it is rarely litigated on its own — a plant-based product containing dairy protein disappoints consumers but seldom contradicts the term's (nonexistent) definition. "Vegan" is elastic in law but firm in consumer understanding, and the reasonable-consumer standard that governs misleading-labeling cases in both jurisdictions borrows that firm understanding: courts and regulators read vegan as no animal-derived content, full stop. Practical consequence: the vegan claim carries genuine liability if any input — a flavor carrier, a fining agent, a capsule — turns out animal-derived. The full legal landscape is mapped in vegan claims on packaging: what is legal.
The naming rules that bite either way
Whichever claim you print, product names face separate rules in the EU. Regulation (EU) No 1308/2013 reserves dairy designations — milk, cheese, yogurt, butter, cream — for products of animal milk, and the Court of Justice confirmed in the 2017 TofuTown judgment (C-422/16) that plant-based products may not use them even with clarifying words like "soy" or "tofu", outside a short list of traditional exemptions such as coconut milk and peanut butter that vary by language. In the United States the FDA took the opposite direction: its February 2023 draft guidance on plant-based milk alternatives accepts names like "almond milk" as established common names, recommending voluntary nutrient-comparison statements alongside them. The same recipe can be "oat drink" in Berlin and "oat milk" in Boston — and your vegan or plant-based claim rides on top of whichever name is lawful locally.
What consumers hear when they read each word
The commercial case for "plant-based" was always that it recruits beyond the vegan core: U.S. retail sales of plant-based foods reached $8.1 billion in 2023 (Plant Based Foods Association / SPINS, 2024), overwhelmingly bought by non-vegans, and category research has consistently found that flexitarian shoppers read plant-based as approachable where vegan can read as restrictive or identity-laden. That logic is real, but it cuts both ways. The shopper the soft word recruits is casual; the shopper the hard word retains is loyal and checks labels. And the softness that makes plant-based welcoming also makes it unverifiable — there is nothing behind the term for a skeptical buyer, a marketplace moderator or an AI shopping assistant to confirm. The claim-strength hierarchy — certified, self-declared, merely positioned — is examined in our claim-hierarchy guide.
Choosing the claim: a side-by-side
| "Plant-based" | "Vegan" | |
|---|---|---|
| Legal definition (US/EU) | None | None in statute; firm reasonable-consumer meaning |
| May contain dairy, egg, honey | Often, lawfully — the term does not forbid it | No — that is the entire content of the claim |
| Covers processing aids | No expectation either way | Yes, in consumer and certifier understanding |
| Audience | Flexitarians, category shoppers | Vegans, allergen-aware label readers, B2B tenders |
| Verifiable by a buyer | No — nothing defined to verify | Yes, when certified against a published standard |
| Litigation exposure if wrong | Low — the term commits to little | Real — the boundary is what you printed |
A decision rule that survives contact with retail
- The recipe meets the vegan boundary and you can document it: print vegan, and certify it — the certified claim recruits the plant-based shopper anyway, while the reverse is not true. Nothing stops you from using plant-based language in marketing copy alongside a certified vegan mark on the pack.
- The recipe meets the boundary but the paperwork does not exist yet: plant-based is the honest interim label while you close the gaps — usually supplier declarations for flavors, carriers and processing aids. A remote desk review is essentially a guided version of that gap-closing.
- The recipe contains dairy or egg by design: plant-based may still be arguable as positioning, but consider whether a defined vegetarian claim serves you better — it is more precise, and precision is what label-readers reward.
- Selling into vegan-filtered channels — tenders, marketplaces, dedicated retail: the filter runs on the vegan claim, usually the certified one. Plant-based positioning is invisible to it.
Frequently asked questions
Can a product be labeled both plant-based and vegan?
Yes, and many are. The terms are not exclusive: plant-based can do the category-signaling work on the front of pack while a vegan claim, ideally certified, does the boundary work. The only requirement is that the vegan claim be true in full — including processing aids and, in the modern reading, animal testing — because the stricter claim is the one you will be held to.
Is plant-based always vegan?
No. In most markets plant-based has no legal definition, and products labeled plant-based may lawfully contain dairy proteins, egg-derived binders, honey or animal-derived processing aids. Surveys of plant-based product launches regularly find a minority containing animal-derived inputs. A consumer or buyer who needs the vegan boundary cannot get it from the plant-based label.
Can I call my product "oat milk" in Europe?
Not in the EU. Regulation 1308/2013 reserves dairy designations for animal-milk products, and the 2017 TofuTown judgment confirmed this applies to plant-based products even with clarifying prefixes. A short annex of traditional names — coconut milk, peanut butter and similar, varying by language — is exempt. In the US, the FDA's 2023 draft guidance accepts plant-based milk names as established common names.
Which claim sells better?
It depends on the shelf. Category data shows plant-based framing recruits flexitarian buyers who find vegan framing restrictive, which is why mainstream launches favored it through the category's growth years. But in vegan-dedicated channels, filtered marketplace searches and B2B tenders, the vegan claim is the one that functions. The strongest position for a qualifying product is a certified vegan mark with plant-based language around it — each term working its own audience.
Do retailers treat the two claims differently?
Increasingly, yes. Retail buyers listing products for vegan ranges or responding to vegan tenders typically require the claim to be substantiated, and many ask specifically for third-party certification with a checkable record. Plant-based positioning is generally accepted on the brand's own authority precisely because it commits to so little. The harder the claim, the more the buyer wants someone independent standing behind it.
The mistake is printing the soft term while needing the hard one, or the hard one while only being able to prove the soft one.