Sources and Methodology | The India Dog Health Report 2026

Read this first

Everyone who took part chose to: they are K9 Vitality customers, or dog owners who chose to take a quiz or answer a survey. That makes this a non-probability, opt-in sample. It is a large, detailed record of how these dogs and these families experience canine health. It is not a representative sample of India's dog population, and we do not present it as one.

Part oneWhere the data comes from

Five first-party datasets, collected from Indian dog owners between August 2023 and July 2026. Each figure in the report carries its own sample size at the point it appears.

Dataset	Sample	Window	How it was collected	What it supports
Verified customer reviews	455	Aug 2023 to Jun 2026	Reviews left voluntarily by customers on our verified review platform. Average rating 4.28 of 5.	Symptoms described, owner-reported timelines, breed patterns, quotations.
Health assessment quiz (combined)	3,089	Dec 2025 to Jul 2026	On-site self-assessment, completed by owners who chose to take it. Two generations of the same tool, split below.	Concerns, breed mix, joint age curve, recurrence, red flags, what owners had tried.
↳ earlier gut and skin version	2,722	Dec 2025 to Mar 2026	Focused on gut and skin, so respondents self-selected for those concerns.	Used only for the shape of gut and skin presentation, breed, recurrence and what owners tried. Never used to rank skin against joints or dental.
↳ current full-body version	367	Mar 2026 to Jul 2026	Full-taxonomy assessment covering all concern areas.	Concern ranking, the joint age switch, the red-flag rate, dental and weight gaps. Labelled where used.
Post-purchase surveys	up to 5,372	May 2024 to Mar 2026	Sent to customers after purchase, across several versions. Each statistic carries its own sample size.	Improvement timelines (the 30-day figure uses 2,589 returning customers), experience scores, personas.
Shipment records	4,808 analysed 4,267 mapped	Trailing	Order destinations aggregated to region and pincode. 4,267 had a destination that could be mapped, reaching 748 towns and cities across 1,679 pincodes.	The geography of supplement-buying dogs in India.
Support conversations	244	to Jun 2026	Customer support and retention calls, reviewed for recurring themes.	Why owners continue, and why some stop.

Part twoEvery headline claim, and what backs it

Claim in the report	Evidence	Sample
Skin is the number one concern, at 41% of specific concerns	Full-body quiz	n = 367
Paw licking is the most common single complaint; noticed on paws, belly and ears	Gut and skin quiz	n = 2,722
Skin and allergy symptoms were most often resolved by the gut product	Review analysis	n = 455
Dogs with atopic dermatitis show an imbalanced gut microbiome	Reference 1	published study
Atopic dermatitis affects an estimated 10 to 15% of dogs	Reference 2	veterinary literature
71% noticed improvement within 30 days; 53% within three weeks	Post-purchase survey	n = 2,589
Gut improvements are reported soonest (2 to 4 weeks); joints slowest (2 months or more)	Review timeframes	n = 113
Glucosamine and chondroitin show significant improvement by day 70; vets set expectations at 8 to 12 weeks	References 3 and 5	randomised trial; veterinary literature
Joint concern has an age switch at four	Full-body quiz	n = 367
Osteoarthritis affects 20 to 25% of dogs, and up to 80% of dogs over eight	Reference 5	veterinary literature
Slippery flooring is a genuine joint-health factor; non-slip surfaces are recommended	Reference 11	peer-reviewed review
Indian native and mixed-breed dogs are the single largest group	Quiz breed data	n = 2,229
Golden Retriever hip dysplasia 53 to 73%; Labrador around 29 to 31%	References 7 and 8	published prevalence studies
26% of assessments surfaced a red flag; supplements were blocked and a vet referral shown	Full-body quiz	n = 362
Periodontal disease affects roughly 80% of dogs over three; only 7% of owners raised dental	Reference 9 + quiz	veterinary literature; n = 362
Obesity affects 25 to 40% of dogs and is the leading nutritional disorder; only 6% raised weight	Reference 10 + quiz	veterinary literature; n = 362
66% say the problem improves then returns; only 8% say it stays fixed	Gut and skin quiz	n = 2,478 answered
Delhi NCR is the largest cluster, then Bengaluru, then Mumbai	Shipment records	n = 4,267 mapped

Part threeThe veterinary literature we cite

Every reference below was re-checked against the original paper in July 2026, including what each study actually found. Links go to the source.

Thomsen M, Künstner A, et al. (2023). A comprehensive analysis of gut and skin microbiota in canine atopic dermatitis in Shiba Inu dogs. Microbiome. PubMed 37864204 / doi:10.1186/s40168-023-01671-2 Found: dogs with atopic dermatitis showed an altered gut microbial composition, and significantly reduced microbial diversity at skin sites. A single-breed study.
Atopic dermatitis in dogs, prevalence. Merck Veterinary Manual, and canine dermatology literature.
McCarthy G, et al. (2007). Randomised double-blind, positive-controlled trial to assess the efficacy of glucosamine/chondroitin sulfate for the treatment of dogs with osteoarthritis. The Veterinary Journal. PubMed 16647870 / doi:10.1016/j.tvjl.2006.02.015 Found: statistically significant improvement in pain, weight-bearing and severity by day 70.
Jensen AP, Bjørnvad CR (2019). Clinical effect of probiotics in prevention or treatment of gastrointestinal disease in dogs: a systematic review. Journal of Veterinary Internal Medicine. PubMed 31313372 / doi:10.1111/jvim.15554 Found: across 17 studies, the evidence for probiotics in canine gastrointestinal disease is limited, and the review concluded any effect may be clinically unimportant. We cite it for the state of the evidence, not as proof of benefit.
Osteoarthritis in dogs, prevalence and management timeline. Merck Veterinary Manual, and published radiographic prevalence studies.
Ruff KJ, et al. (2016). Effectiveness of eggshell membrane in the treatment of suboptimal joint function in dogs: a multicenter, randomized, double-blind, placebo-controlled study. Veterinary Medicine (Auckland). PubMed 30050844 / doi:10.2147/VMRR.S101842 Found: significant improvement in joint function and pain versus placebo at one week.
Paster ER, et al. (2005). Estimates of prevalence of hip dysplasia in Golden Retrievers and Rottweilers and the influence of bias on published prevalence figures. JAVMA. PubMed 15702688 / doi:10.2460/javma.2005.226.387 Found: hip dysplasia prevalence in Golden Retrievers ranged from 53% to 73%.
Ohlerth S, et al. (1998). Epidemiologic and genetic studies of canine hip dysplasia in a population of Labrador Retrievers: a study over 25 years. Deutsche Tierärztliche Wochenschrift. PubMed 9818525 Found: overall hip dysplasia prevalence of 31.3% across 738 Labradors, measured over 25 years in a single breeding population.
Periodontal disease in small animals. Merck Veterinary Manual.
Canine obesity, prevalence and ranking as a nutritional disorder. Merck Veterinary Manual and canine nutrition literature; lifespan effect from the Purina lifetime feeding study (Kealy et al., 2002, JAVMA).
Pye C, et al. (2024). Current evidence for non-pharmaceutical, non-surgical treatments of canine osteoarthritis. Journal of Small Animal Practice, 65:3-23. doi:10.1111/jsap.13670 Includes environmental modification for osteoarthritis, such as non-slip mats and rugs where flooring is slippery. Supported by American College of Veterinary Surgeons guidance on osteoarthritis in dogs.

Part fourMethodology and limitations

How to read these numbers

We report figures as a share of the dogs or owners in this dataset, never as a share of India's dogs.
We claim no margin of error and no confidence interval. Neither is valid for an opt-in sample. The figures are directional.
The earlier gut and skin quiz self-selected for itch and gut concerns. We therefore use it only to describe how gut and skin problems present, never to rank skin against joints or dental.
All health outcomes are reported by owners, not clinically measured. They describe what owners observed, which can include normal fluctuation and expectation effects.
Observational data shows association, not causation. Where the report describes what owners saw, it is written as observation, not proof of effect.

Funding and conflict of interest

This report was designed, conducted and funded by K9 Vitality, a company that sells dog supplements related to some of these findings. The data comes from K9's own customers and audience. We state this plainly because a reader deserves to weigh it.

Medical review

Every medical statement and prevalence figure was reviewed by Dr. Jasleen Kaur, BVSc, a practising veterinarian (Allpets Clinic and Beyond, Hyderabad). This report is clinically reviewed. It is not peer-reviewed: no independent journal reviewed it, and we do not describe it as though one did.

Data and privacy

Only aggregate, anonymised figures are published. No individual dog or owner is identifiable beyond a name they chose to publish themselves, such as on a public review. Families featured with photographs are contacted for consent before publication. Our handling follows the principles of India's Digital Personal Data Protection Act, 2023: consent, purpose limitation and data minimisation.

Corrections

Before publication we re-checked every citation against its original paper and corrected two statements that claimed more than their source supported. We will correct any further error brought to our attention and note it here. Figures reflect data available as of July 2026 and will be refreshed annually.

How to cite this report
K9 Vitality (2026). The India Dog Health Report 2026. India: K9 Vitality. Available at k9vitality.in.

Questions, or want to check something

If you are a journalist, veterinarian or researcher and want to verify a figure, or want more detail on how a number was derived, write to hello@k9vitality.in and we will answer.