DNA Testing a Newfoundland for Cystinuria & Heart Markers

Newfoundlands have two genetic health concerns that conscientious owners really do keep an eye on — cystinuria, which can cause dangerous bladder stones, and a handful of cardiac-related genetic markers, particularly around dilated cardiomyopathy. DNA testing can genuinely help here, though I want to be upfront: genetic screening tells you about inherited risk, not current disease status. A clear cardiac gene result doesn't replace annual auscultation with your vet or periodic echocardiograms, which are still the gold standard for Newfs. That said — is this mainly about the cystinuria screening, the cardiac side, or both? And has your vet already flagged any concerns, or is this more proactive baseline testing?

That's exactly the right mindset — you're already doing the clinical monitoring, so genetic data becomes a useful complement rather than a substitute. Good news: cystinuria in Newfoundlands is well-characterised genetically. The mutation responsible (SLC3A1 and SLC7A9 variants) is one of the more reliably tested conditions in canine DNA panels. Cardiac-linked markers are a bit more complex — DCM in particular is polygenic, meaning multiple genes contribute, so no test gives you a complete cardiac risk picture. But knowing your dog's status on the known markers is still worthwhile. Can I ask — are you set on a UK-based lab, or are you comfortable sending a swab to a US-based service? It affects which test I'd point you toward.

In that case the clear recommendation is the Embark Breed & Health Kit. It's the most comprehensive consumer dog DNA test available — screening for over 250 genetic health conditions, including the cystinuria-associated variants relevant to Newfoundlands, plus the cardiac markers currently identifiable by DNA (including DCM-linked variants where genetic associations have been published). The breed composition side is irrelevant to you since he's a pedigree Newf, but the health panel is what sets Embark apart from competitors like Wisdom Panel on depth of condition coverage. You swab at home, post to their US lab, and results come back in three to four weeks. It's sold on Amazon UK — the Breed & Health Kit, not the cheaper Breed-only version. Make sure you select the right one at checkout.

Yes, and it's worth being clear about this. Cystinuria in Newfoundlands has a known genetic basis, but not every dog with the mutation will develop stones — diet, hydration, and other factors play a role. So a positive result means increased risk and warrants monitoring (urine pH checks, diet adjustments), not automatic alarm. On the cardiac side, DCM has a strong environmental and nutritional component in addition to genetics, and the genetic markers currently in any consumer panel don't capture the full picture. Embark will report on what's genetically known, but your annual echo is genuinely the more important tool for cardiac surveillance in a Newf of his age. Think of the DNA result as information to share with your vet, not a final verdict either way.

Exactly right. The listing is called 'Embark Breed & Health Kit' — the health version is noticeably more expensive than the breed-only kit, so if the price looks suspiciously low, double-check you've got the right one. The health panel is what gives you the cystinuria and cardiac marker coverage. Once results are in, download the full health report and take it to your vet — some of the condition flags are nuanced and your vet will know how to contextualise the results for a Newfoundland specifically.