Official websiteRegulation
FDA Rules for Pet Supplements: What They Mean for Mighty K9 and Your Dog
FDA does not approve dog supplements before they go on sale. Since 1996, FDA has said the human supplement law does not cover animals, so pet supplements are treated as animal food or animal drugs, and a disease claim makes a product a drug. Mighty K9 makes no disease claim on its label, which is why it reads like a food product with a Guaranteed Analysis.
Written by the Mighty K9 editorial teamUpdated · 8 min read
The short rule
Does FDA approve pet supplements before they are sold?
No. No federal agency reviews a dog supplement for safety, quality or results before it goes on sale (Tufts Petfoodology, Supplements).
The reason is a 1994 law for people called DSHEA. It created the "dietary supplement" category for human vitamins and capsules. In 1996, FDA decided that law does not apply to animal products (FDA, Pet food regulation). So there is no legal supplement category for dogs. Every pet supplement lands in one of two boxes: animal food or animal drug.
Food or drug
Is a dog supplement a food or a drug under FDA rules?
It depends on the claim. A product meant to treat or prevent a disease is an animal drug; a product that only adds taste, smell or nutrition is animal food (FDA, Pet food regulation).
Plain olive oil sold as a food topper is food. The same oil sold with a promise to ease arthritis would be making a drug claim, and approved animal drugs must pass FDA review.
A label that says it treats arthritis or relieves joint pain points at a disease. "Supports healthy joints" points at normal function. The softer wording puts a product in a different legal box. It does not mean the evidence is any stronger.
Who does what
Who regulates pet supplements in the United States?
FDA sets the federal rules, state feed officials enforce labels using AAFCO models, and the FTC polices advertising. None of them tests a product before sale.
| Group | What it covers | What it does not do | Mighty K9 |
|---|---|---|---|
| FDA, Center for Veterinary Medicine | Food or drug status; unsafe products; illegal drug claims | No review before sale | Food-type label; no disease claim |
| State feed officials (AAFCO models) | Label format and calorie statement | AAFCO does not approve products | Label follows the format |
| FTC | Advertising, health claims, fake reviews | No product testing | Sales page claims fall under it |
| NASC | Voluntary seal after a company audit | Does not prove a product works | No seal shown |
| Your veterinarian | Your dog's history and medicines | Is not a regulator | The person to ask before you start |
The gray zone
What is FDA enforcement discretion for animal supplements?
It means FDA often chooses not to act against products that are technically unapproved drugs. The American Veterinary Medical Association says many animal supplements sit in this gray zone, and many fail quality tests for potency and contaminants (AVMA, Pet supplements).
FDA tends to focus on products with a safety risk or bold disease claims. That is a resource choice, not approval. A 2021 study found some C60 oils sold online were off their label strength by more than 18% (Grohn 2021, mice). It did not test Mighty K9, but it shows label numbers are a starting point, not a promise.
Labels
What must a pet supplement label show?
A food-type label follows AAFCO's model rules: a guaranteed analysis, ingredients in order of weight and a calorie statement (AAFCO, Reading labels).
- Minimum crude protein and fat, maximum fiber and moisture.
- Calories in kcal per kg, as metabolizable energy (AAFCO, Model regulations).
- An asterisk on any substance that is not an essential nutrient (AAFCO, Model regulations).
Mighty K9's panel has each part, including the ESS60 asterisk and 16.2 kcal per 2 mL serving. See the Guaranteed Analysis page or our post on reading a dog supplement label.
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Order nowSeals
What does a NASC Quality Seal on a dog supplement tell you?
It means a company passed an independent facility audit and keeps quality, label and adverse event systems (NASC, Quality Seal). It reflects how a company runs, not proof a product works.
Mighty K9 shows no NASC seal. Its Good Manufacturing Practice and "Manufacture in USA" badges name no certifier or facility, so read them as brand claims. The testing and quality page covers each badge.
Advertising
What do FTC rules say about pet supplement claims?
The FTC's 2022 guidance says health claims need competent and reliable scientific evidence, generally randomized controlled trials (FTC, Health claims). Animal studies and testimonials are not enough on their own.
C60 research comes from rodents. One small rat study reported longer lives (Baati 2012, rats); a larger mouse study did not (Grohn 2021, mice). A PubMed search found no clinical trial of C60 in dogs (PubMed search, C60 in dogs). The FTC also bans fake and AI-written reviews (FTC, Fake reviews rule); see how to spot fake pet supplement reviews.
Applying it
How should you read Mighty K9's claims under these rules?
Read the label as fact and the sales page as marketing.
Three ingredients
Olive oil, ESS60 and bacon flavor. 2 mL per serving, 30 servings, 16.2 kcal each.
Joints and aging
Comfortable movement, healthy joints and "cellular aging" support. No dog study backs them.
Timelines
The sales FAQ's two to three weeks and eight to twelve weeks. No study backs those dates.
Mighty K9 is not a veterinary drug or an arthritis treatment. A limping dog needs a vet visit first (ACVS, Osteoarthritis). More on the seller and the gaps: is Mighty K9 legit?
If something goes wrong
How do you report a problem with a pet supplement to FDA?
Use FDA's Safety Reporting Portal (FDA, Report a complaint). Reports help FDA spot patterns that one owner cannot see.
Get care first
Call your vet, or the Pet Poison Helpline at (855) 764-7661 ($89 per incident) (Pet Poison Helpline).
Keep the bottle
Note the product name, lot number and best-by date.
File the report
Add where you bought it and your vet's records. Then tell the order desk at +1 (302) 200-3480.
FAQ
Pet supplement regulation FAQ
Are dog supplements regulated by the FDA?
Yes, but loosely. FDA treats them as animal food or animal drugs, because the human supplement law does not apply to animals. FDA does not review them before sale and often uses enforcement discretion, acting mainly on safety risks or bold disease claims.
Is Mighty K9 approved by the FDA?
No, and no pet supplement is, because FDA does not approve them before sale. Mighty K9 is sold as a food-type product with a Guaranteed Analysis and makes no disease claim on its label. Its sales page claims have not been evaluated by FDA.
Does DSHEA apply to pet supplements?
No. DSHEA is the 1994 law that created the dietary supplement category for people. In 1996, FDA decided it does not apply to animal products, so dog supplements are regulated as animal food or animal drugs instead.
What is the difference between AAFCO and FDA?
FDA is the federal agency that sets rules for animal food and drugs. AAFCO is a group of feed officials that writes model label rules, which states enforce. AAFCO does not approve or test products, so an AAFCO-style label is a format, not an endorsement.
Is the NASC seal required for dog supplements?
No, it is voluntary. Companies earn it by passing an independent facility audit and keeping quality and adverse event systems. It shows good processes, not that a product works. Mighty K9 does not display a NASC seal.
Can a dog supplement say it treats arthritis?
Not as a food product. A claim to treat, prevent or relieve a disease makes a product an animal drug, and drugs need FDA approval. That is why supplement labels use softer words like healthy joints.
Where do I report a dog supplement that made my dog sick?
File a report through FDA's Safety Reporting Portal with the product name, lot number, best-by date, where you bought it and your vet's records. Keep the packaging. Get your dog veterinary care first, and tell the seller too.
Who wrote this
Written and reviewed by
Plain-language pages built from the label, the sales page and linked veterinary and government sources.
Last updated . Our editorial standards and the way we check reviews are published. This website is run by Gomightyk9, an authorized Mighty K9 shop, not by the manufacturer. We earn money when you buy through our order links.
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The label panel decoded line by line: fat, moisture, the ESS60 asterisk, calories and what is missing.
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