What at-home pet DNA tests promise

At-home DNA test kits promise pet owners clarity on breed ancestry, blood type, and health risks. Owners swab their pet's mouth, mail the sample, and wait up to five weeks for results.

The problem: tests give different answers

Because of differences in sample size and comparison methods, these tests often give dramatically different results for breed ancestry and traits, even when testing the same animal.

Testing three popular kits

The author tested Basepaws at one hundred four dollars, Wisdom Panel at ninety-seven dollars, and Koko Genetics at one hundred forty dollars on two adult cats to compare results and accuracy.

Wisdom Panel: easiest to use

Wisdom Panel screens for over seventy breeds, tests for forty-five plus genetic health conditions, and determines blood type. Results arrived within three weeks in a user-friendly interface with clickable tabs.

Wisdom Panel results for Clover

The author's cat Clover tested as fifty-one percent American domestic cat, thirteen percent Highlander, thirteen percent Norwegian Forest Cat, thirteen percent Siamese and Oriental, and ten percent LaPerm.

Basepaws: most health detail

Basepaws identifies up to twenty-one breeds, tests for sixty-four genetic health markers and fifty genetic trait markers, and provides an oral health report. Results took five weeks and came as a PDF.

Basepaws flagged dental problems

Basepaws found the author's cat Basil at high risk for halitosis, tooth resorption, and periodontal disease, recommending daily oral health care and a vet appointment within a month.

Basepaws results for Clover

Clover tested as twenty point six one percent polycat, sixteen point nine one percent broadly Western, fourteen point four five percent American Shorthair, and included Maine coon, Ragdoll, and Persian.

Koko Genetics: hardest to understand

Koko Genetics tests for fifty-five genetic health markers and forty traits but has the least user-friendly interface. Results took over five weeks to arrive and much information was in scientific jargon.

Koko Genetics flagged a gene mutation

Koko Genetics flagged Clover as carrying one copy of the Acute Intermittent Porphyria variant three gene mutation, which can cause discolored teeth and urine. Wisdom Panel did not flag this.

Koko Genetics results for Clover

Clover tested as fifty-nine point five percent domestic cat, eight point eight percent Sphynx, six point six percent Turkish Van, six point three percent Maine Coon, and five point seven percent LaPerm.

Best dog DNA test: Embark

Embark screens for over four hundred dog breeds and includes a family tree and relative finder. Results arrived within three weeks. It does not include health screening or genetic risk information.

How DNA tests work

Pet DNA tests analyze a cheek swab using single-nucleotide polymorphism arrays to identify breed ancestry and genetic health markers. Results are compared against the company's breed and genetic health database.

Why cat breed results are unreliable

About ninety-five percent of cats don't belong to a recognized breed. Cats' genetic backgrounds are muddied, so tests only show which breeds they share the most markers with, not actual ancestry.

Dogs are easier to identify

Breed identification is more accurate for dogs because dog DNA is more diversified. Breeds have been clearly defined after centuries of diversification, and dog DNA mutates quickly, with genes changing after just a few generations.

A CBS test showed the problem

In a two thousand twenty-three CBS report, dog DNA sent to different at-home test companies ranged from sixty-five percent to only twenty-nine percent German Shepherd, showing how inconsistent results can be.

Don't trust at-home allergy tests

The author tested an at-home allergy kit for one hundred dollars but learned that hair and fur samples are not accurate for measuring allergies. Studies show these kits perform no better than chance.

Veterinarian: use tests as a flag, not truth

Jamie Richardson, head of veterinary medicine at Small Door Veterinary, says DNA tests are tools to support, not replace, veterinary care. Forward results to your vet and schedule a visit if flagged as a carrier.

“DNA tests are tools to support, not replace, veterinary care.”