Pet DNA testing guide (2025)

This guide explains what pet DNA tests can realistically tell you, what they cannot, and what to consider before sending a sample.

1) Breed results are model estimates

Breed and ancestry results are probabilities based on reference data. Smaller “fragments” are less stable, and updates can happen as databases improve.

• For mixed pets, treat small percentages as “possible,” not definitive.
• Expect improved reporting over time; re-interpret if the provider updates your report.
• Database coverage varies: dogs generally have broader consumer coverage than cats.

2) Health markers are informational, not diagnoses

Some providers report genetic variants linked to higher risk or carrier status. This can be useful, but it does not replace clinical evaluation.

• Risk markers do not guarantee disease.
• Carrier results matter mostly for breeding decisions.
• If symptoms exist, clinical work-up is the priority.

3) Privacy & sample handling checklist

Before you buy, check:

• How long is the physical sample stored?
• Can you request sample destruction?
• Can you request deletion of genetic data and account data?
• Is research sharing opt-in or opt-out?
• What happens if the company is acquired?

4) Dogs vs cats: practical expectations

• Dogs: broader testing ecosystem, often better “breed + health” kits.
• Cats: fewer mainstream options; more emphasis on lineage confirmation and selected findings.

If you specifically want dog DNA testing comparisons, use DogDNA.bio.