How to Read a Supplement Claim

Four questions that filter most marketing

1. What outcome was actually measured? A biomarker moving is not the same as a dog living better. Ask whether the claimed benefit was mobility, cognition, disease incidence — or a laboratory value.

2. In what species, at what life stage? Findings in cell culture, worms, flies or rodents are hypotheses about dogs. They are not results in dogs.

3. Over what timeframe, in how many animals? Longevity claims require long observation. A short study in a small group cannot support them, however positive it looks.

4. Who decided the outcome mattered? Outcomes chosen after the data are seen are much weaker than outcomes declared in advance.

Mechanism is the easiest thing to sell

"Supports cellular energy pathways" describes a mechanism, not a result. Mechanistic stories are cheap to construct and hard to falsify. Treat them as a reason to look for outcome data, never as a substitute for it.

Practical position

Supplements are not inert. They can interact with medications and can be contraindicated in specific diseases. Read the actual product label and ask two questions: is there any outcome evidence in dogs, and is there anything here that could interact with what my dog already takes?

Our own standard

Pawformance Labs does not publish citations we have not verified, and does not name specific studies or products in support of a longevity claim unless the underlying evidence has been reviewed. Where our confidence is low, the article says so in the evidence classification rather than in the footnotes.