A dog joint chew and a human joint capsule can share a formula and a factory, but they live under different rules. Pet supplements are not dietary supplements in the eyes of the FDA, and that changes what your label and your Amazon listing can say.
Short answer
Pet supplements are not regulated as dietary supplements. FDA decided in 1996 that the Dietary Supplement Health and Education Act does not apply to animal products, so FDA's Center for Veterinary Medicine treats them as animal food or animal drugs depending on ingredients and intended use. On Amazon, claims to treat or prevent disease in animals are prohibited without FDA approval, and some pet products need category approval.
1996
Year FDA said the dietary supplement law does not apply to animal products
Federal Register, Apr 22, 1996
2
Legal categories FDA uses for pet supplements: animal food or animal drug
FDA: Regulation of Pet Food
10 units
Minimum invoice quantity Amazon cites for most pet product approvals
sell.amazon.com, Apr 2026
2001
Year NASC, the animal supplement trade group behind the Quality Seal, was formed
NASC
Human supplements sit in their own legal category created by the Dietary Supplement Health and Education Act of 1994 (DSHEA). Pet supplements do not. In an April 1996 Federal Register notice, FDA said that after examining the law's language, intent and legislative history, it had determined that DSHEA does not apply to animal products (Federal Register, April 22, 1996). FDA pointed to differences between people and animals, including that very few supplement ingredients have an established history of safe use in any animal.
FDA's own explainer on how it regulates pet food states the result plainly: products marketed as dietary supplements for animals do not fall under DSHEA, FDA does not recognize them as a special category, and it regulates them as either food for animals or animal drugs depending on their ingredients and intended use. The office in charge is FDA's Center for Veterinary Medicine (CVM).
That one fact changes everything that follows. There is no Supplement Facts panel requirement, no DSHEA-style structure/function safe harbor, and no FDA disclaimer that makes a claim acceptable. If you already sell human supplements, read our structure/function claims guide to understand the human rules, then set most of that aside for your pet line.
The Federal Food, Drug, and Cosmetic Act defines food as articles used for food or drink for people or other animals, and drugs as articles intended to diagnose, cure, mitigate, treat or prevent disease, or articles other than food intended to affect the structure or function of the body. FDA says courts have read food to mean products used mainly for nutrition, taste or aroma (FDA: Regulation of Pet Food).
So FDA asks where the effect comes from. A product that affects structure or function mainly through its nutrition, taste or aroma is typically food. FDA's examples are a dog food with calcium that may affect bone structure in puppies, and a cat food with taurine that may help heart health. A product whose effect does not come mainly from nutrition, or that is meant to treat or prevent disease, is a drug. FDA's drug examples include a product intended to improve joint function in an arthritic dog.
Ingredient status follows the same logic. FDA says it is illegal to use an unapproved food additive in pet food, and that a substance can be generally recognized as safe (GRAS) for one use but not another. Its own example: chondroitin sulfate cannot be GRAS when added to food to prevent or treat arthritis in pets, because for that use it is an animal drug. Animal drugs generally need FDA approval before sale, after FDA reviews safety and effectiveness.
Claims are where pet supplement brands get in trouble. In a November 2024 warning letter, CVM told a pet supplement seller that its products were unapproved new animal drugs, citing product names and Amazon listing copy that referred to seizures, epilepsy, arthritis and hip dysplasia (FDA warning letter, Nov 12, 2024). FDA said the names alone indicated the products were meant to treat disease. Your brand name and product name count as claims.
AAFCO, the association of state and federal feed control officials, says on its supplements page that many products similar to human supplements are sold for animals contrary to feed regulations, that many claim or imply they mitigate, treat or prevent disease, and that unapproved drug claims misbrand and adulterate feed products even when the container also carries a disclaimer. A human-style disclaimer does not fix a pet claim.
Nutrition-centered language: supplies omega-3 fatty acids, a source of vitamins and minerals, made to complement a complete diet. Function wording such as joint support is a gray zone, because FDA treats effects that do not come mainly from nutrition as drug effects. Have counsel review all of it.
Any disease or condition name: arthritis, hip dysplasia, seizures, epilepsy, anxiety disorder, kidney disease, allergies, infections. Also avoid words like treats, cures, heals, prevents, relieves pain, reduces inflammation and alternative to medication.
Product names, keywords, images of limping or sick animals, and testimonials that describe a diagnosed condition all signal intended use. The 2024 letter quoted Amazon bullets and product titles.
On labels, FDA says current federal rules for pet food require proper identification of the product, a net quantity statement, the name and place of business of the manufacturer or distributor, and all ingredients listed from most to least by weight (FDA: Pet Food). The details sit in 21 CFR Part 501; for example, 21 CFR 501.5 requires a qualifying phrase such as Manufactured for or Distributed by when your company did not make the product. FDA adds that some states enforce their own labeling rules, many based on AAFCO's model.
States are the second layer. AAFCO says most states regulate animal feed through their departments of agriculture and require either registration of product labels or a license for the firm, with fees, one- or two-year cycles and tonnage reporting that vary by state (AAFCO: Registration and licensing). Which states your pet supplement needs, and under which category, is a question for counsel or the state feed control officials, not for us.
The National Animal Supplement Council (NASC) is a nonprofit trade group for companies that make supplements for dogs, cats and horses. It formed in 2001 in response, in its own words, to the lack of an appropriate legal category for animal supplements (NASC). It is an industry program, not a regulator.
NASC says member companies earn permission to display its yellow Quality Seal by passing an independent quality audit and staying compliant with its criteria (NASC Quality Seal). It lists those criteria as a quality control manual with written procedures, an adverse event and complaint reporting system, its labeling guidelines, caution statements CVM recommends for certain ingredients, random product testing by an independent lab against label claims, and annual NASC training. NASC's FAQ adds that members report adverse events monthly and that the system is available to FDA, and its home page says the seal must be earned and cannot be purchased.
The company passed NASC's audit, follows NASC labeling standards built with CVM and AAFCO input, and runs adverse event reporting and label-claim testing.
It is not FDA approval, it does not turn a drug claim into a legal one, and NASC's FAQ says it does not guarantee increased sales. Do not describe it as government certification.
Display the seal only after NASC grants permission. Amazon's misleading claims policy says certification claims must follow the rules of the certifying body.
We did not find one Amazon help page dedicated to pet supplements, so the rules come from several policies. Amazon's misleading and prohibited claims policy says Amazon prohibits products that claim or imply they diagnose, cure, mitigate, treat or prevent diseases in humans or animals without FDA approval. Its disease example, a claim to reduce the pain and stiffness associated with arthritis, is exactly the copy many joint chews use. The same policy requires certification claims to follow the rules of the certifying body and bans unqualified superlatives without proof.
Amazon's animals and animal-related products policy requires compliance with federal, state and local law and makes sellers responsible for any licenses and permits. Its prohibited list includes food for pets or other animals that is not registered or licensed as required by law, which ties your Amazon standing to the state registrations described above. It also prohibits joint supplements containing shark cartilage, shark liver oil, and products from species protected under the Marine Mammal Protection Act, and says prescription pet medications must be sold by a licensed pet pharmacy.
Amazon's human dietary supplement policy defines a dietary ingredient as one intended for human consumption, and its TIC verification and five-category testing rules are written around human supplements. Do not assume a dog chew is outside those rules, though. Amazon says it may classify a product as a dietary supplement based on cues such as a Supplement Facts panel or dosing language, so how you label and describe the product matters. Check Account Health and Manage All Inventory for any notice on your ASINs.
Amazon's seller guide to pet products says some pet products need approval. Search the product in Seller Central; Apply to sell means you need approval. Amazon says many pet products ask for manufacturer invoices dated within 180 days showing at least 10 units, plus photos of all package sides (sell.amazon.com, April 2026).
The same guide says pet products must be new, sealed in original packaging, show lot numbers or similar codes, and have English labels with product name, manufacturer and warnings. For FBA shelf life, go by Amazon's expiration dates on FBA products page: as of October 2026 it asks for enough shelf life to use the full product plus 90 days at check-in, its guideline table lists 730 days for herbal or mineral supplements, and it accepts DD-MM-YYYY (preferred), DD-MMM-YYYY and MM-YYYY dates. Confirm the rules for your ASIN in Seller Central.
Amazon lists pet food and treats as restricted products that require compliance with FDA rules, and says some pet products need FDA registration and compliance documents.
This is the sequence we use with brands adding a pet line. It front-loads the regulatory decisions, because changing a product name or claim after you print and build reviews is expensive.
With counsel, decide whether you are selling a nutritional supplement (animal food) or a product that functions like a drug, based on ingredients and intended use. Check each ingredient's status for animal use rather than assuming human supplement status carries over.
Pick a brand and product name with no condition in it. FDA's 2024 letter treated product names as evidence of drug intent.
Ask what quality system the plant runs for animal products, whether it registers as an animal food facility, and how it tests for label claims. Our manufacturer vetting guide and question list apply with that adjustment.
Include the statement of identity, net quantity, ingredients in descending order by weight, and the manufacturer or distributor name and place of business, plus any state requirements and species-specific directions. Avoid a human-style Supplement Facts layout unless counsel approves it.
Work out which states require product registration or a firm license before you sell into them. Amazon prohibits pet food that is not registered or licensed as required.
If retail credibility matters, review NASC membership and the Quality Seal audit before launch so the seal can go on your first print run.
Title: brand, product type, species, form and count. Bullets: ingredients, amounts per chew or scoop, feeding directions by weight, and nutrition-centered benefits. Keep disease names out of titles, bullets, images and backend keywords.
Request category approval if prompted, send inventory with expiration dates that meet Amazon's rules, then launch with Sponsored Products and Subscribe & Save, which Amazon's pet guide points to for repeat purchases.
Some of this you should never outsource to a marketing agency. Whether your product is food or a drug, which ingredients are allowed for animals, and which states need registrations are legal questions. A regulatory attorney who works with animal products, or your state feed control office, should answer them. Some founders with one simple vitamin chew, a clean name and nutrition-only copy can handle the Amazon side themselves with this page and a free listing check.
Brands hire help when the catalog grows: a pet line next to a human line, variations by size and species, images and A+ content that need to sell without crossing into drug claims, and listings that keep getting flagged. In Amazon brand management, your brand manager rewrites listings to stay on the food side of the line, builds species-specific images, keeps state and Amazon documents organized, and runs PPC around ingredient and life-stage keywords instead of disease terms.
Plans are paid upfront monthly and run month to month: Brand Support 5 hours for $750, Brand Manager 10 hours for $1,250, Brand Manager Plus 20 hours for $2,000, and Full Brand Management 40 hours for $3,600. One-off work is also available: listing optimization is $495 per listing, product photography runs $295, $495 or $745, and PPC management starts at $995 a month. Packaging and label design is quoted per project or done inside brand management hours. See the full pricing page or start with a free listing audit.
If you want to talk it through, email Ian at [email protected] or call or text 719-257-3557. Our brand management for supplement brands page explains how we run supplement catalogs, and the supplement brand marketing hub links every guide in this series.
Federal Register: Inapplicability of DSHEA to Animal Products, Apr 22, 1996
govinfo.gov · Open source →
FDA: FDA's Regulation of Pet Food
fda.gov · Open source →
FDA: Pet Food
fda.gov · Open source →
FDA: Warning letter, Center for Veterinary Medicine, Nov 12, 2024
fda.gov · Open source →
eCFR via Cornell LII: 21 CFR 501.5, Animal food name and place of business
law.cornell.edu · Open source →
AAFCO: Supplements
aafco.org · Open source →
AAFCO: Registration and licensing
aafco.org · Open source →
NASC: Quality Seal
nasc.cc · Open source →
NASC: Frequently asked questions
nasc.cc · Open source →
NASC: Regulation of animal health supplements, historical summary
nasc.cc · Open source →
Amazon Seller Central: Misleading and prohibited claims
sellercentral.amazon.com · Open source →
Amazon Seller Central: Animals and animal-related products
sellercentral.amazon.com · Open source →
Amazon Seller Central: Dietary supplements policy
sellercentral.amazon.com · Open source →
Amazon (sell.amazon.com): How to sell pet products on Amazon, Apr 2026
sell.amazon.com · Open source →
Amazon Seller Central: Expiration dates on FBA products
sellercentral.amazon.com · Open source →


Founder, Evolve Media Agency
Ian has run Evolve Media Agency since 2017 and has sold on Amazon since 2015. He and Megan run brand management, launches, PPC and in-house photo and video for Amazon, Shopify and TikTok Shop brands, including supplement brands, from Colorado. Questions about this page go straight to him at [email protected].
Guide
The human supplement rules on Amazon, and the cues Amazon uses to classify a product as a supplement.
Guide
Where the human claim line sits, so you can see how differently pet products work.
Service
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