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The Mental Health Benefits of Owning a Pet: UK Research

Millions of UK pet owners will tell you their animal is good for their mental health. But is this backed by research? Increasingly, the answer is yes. Studies from UK universities, charities, and health bodies have documented a range of measurable psychological benefits associated with pet ownership — alongside some important caveats.

What the Research Says

The mental health benefits of pet ownership have been studied extensively, with a growing body of UK-based evidence. The Mental Health Foundation notes that animals can provide companionship, routine, sensory comfort, and a sense of purpose — all factors that support psychological wellbeing.

A 2016 survey by the UK charity MIND found that over 87% of respondents who owned a pet said their animal had a positive impact on their mental health. The specific benefits reported included reduced loneliness, a greater sense of calm, and increased motivation to engage in activities outside the home.

Research published in the BMC Psychiatry journal examined the role of pets in the social networks of people with serious mental illness and found that pets often served as a crucial source of emotional support, a consistent focus of care and responsibility, and a catalyst for social interaction with other people. The authors noted that pets provided a form of companionship characterised by unconditional acceptance that many human relationships lacked.

The Human Animal Bond Research Institute (HABRI) has collated global research showing associations between pet ownership and reduced blood pressure, lower cortisol (stress hormone) levels, reduced loneliness, and improved mood. While many studies in this field are observational and causality is complex, the evidence base is substantial and growing.

Anxiety and Stress Reduction

Physical interaction with animals — particularly stroking a dog or cat — has measurable physiological effects on stress. Research has found that petting a dog produces a reduction in cortisol levels and an increase in oxytocin (a bonding and wellbeing hormone) in both the human and the animal. This bidirectional hormonal response is part of what makes the human-animal bond genuinely therapeutic.

Therapy dog programmes in UK hospitals, care homes, and universities have been evaluated with generally positive results. Studies at several UK universities, including a programme at the University of York, have found that animal-assisted activities during exam periods significantly reduce student-reported anxiety and perceived stress. NHS trusts including those in Bristol and the North East have used therapy dogs on wards with encouraging patient feedback.

The act of caring for a pet — maintaining routine, feeding, grooming, walking — also provides structure that can be helpful for people managing anxiety or depression. For people whose mental health can make it difficult to maintain daily routines, the non-negotiable needs of an animal provide gentle, consistent motivation.

Mindfulness benefits are also reported: focusing on an animal, playing with them, or simply watching their behaviour is a form of present-moment attention that many people find calming. Apps and resources based on this principle, including NHS-approved guided mindfulness programmes, share functional similarities with time spent with an attentive, well-cared-for pet.

Social Connection and Loneliness

Pets — particularly dogs — are powerful social catalysts. Dog walking creates regular opportunities for unplanned social interaction with other owners in parks and on streets. Research by Dr June McNicholas at the University of Warwick found that pet owners reported significantly more opportunities for social contact and were more likely to have formed friendships with people they met through their pets.

This social facilitation effect is particularly important for groups at high risk of social isolation: elderly people living alone, people with social anxiety, and those newly arrived in a community. A dog serves as a shared point of connection that bypasses the usual barriers to initiating conversation with strangers.

The Campaign to End Loneliness, which works closely with NHS England, has highlighted pet ownership as one of several factors that protect against chronic loneliness in older adults. For elderly people who live alone, a pet may provide the only daily physical contact and consistent companionship available.

The PDSA's PAW Report 2024 found that 60% of pet owners said their pet helped them feel less lonely, with the figure rising to over 70% among those who live alone. These findings support the mental health case for pet ownership, while also highlighting the welfare implications of ensuring pets themselves receive adequate care and social contact.

Important Caveats

While the evidence for mental health benefits of pet ownership is strong, it is not universal or without complexity. The experience of pet ownership is not uniformly positive: financial stress related to vet bills, housing restrictions on keeping pets, the grief of pet loss, and the challenges of managing a pet alongside mental illness or disability can all reduce the net benefit.

A 2020 study in the journal PLOS ONE, which analysed data from the UK Household Longitudinal Study, found that pet owners did not show consistently better mental health outcomes than non-owners once confounding factors (income, social support, pre-existing health) were controlled for. The relationship between pet ownership and mental health is real but nuanced — a pet is not a guaranteed treatment for mental ill-health.

The PDSA Animal Wellbeing (PAW) Report consistently finds that a significant proportion of UK pets have unmet welfare needs, including inadequate exercise, social isolation, and poor diet. Owning a pet without being able to fully meet its welfare needs creates guilt and stress — and welfare-compromised animals are less able to provide the positive experiences that make pet ownership beneficial.

Therapeutic benefits of pet ownership are most reliably realised when the pet's welfare is also well supported. This is why access to affordable, transparent veterinary care matters both for animal welfare and for the wellbeing of owners.

Affordable Vet Care Supports Both Wellbeing and Welfare

One of the most significant barriers to the mental health benefits of pet ownership is the cost and anxiety associated with veterinary care. Pets with unmet medical needs and owners who fear vet bills create a stress cycle that undermines the wellbeing benefits of the relationship.

CompareMyVet exists to address this directly. By making vet prices transparent and comparable at app.comparemyvet.uk, we help UK pet owners access affordable care without the uncertainty that puts people off seeking treatment. The CMA's 2026 reforms have made price transparency a legal requirement — use this to your advantage.

For guidance on finding cost-effective veterinary care, explore our comparison tool and read our guide to comparing local vets.