A recognised authority on pet nutrition, WALTHAM research encompasses multiple disciplines to investigate:

  • nutrient requirements for pet life stages and lifestyles
  • gastrointestinal health
  • energy requirements
  • immune function
  • skin and coat condition
  • feeding behaviour
  • clinical nutrition

We share our key findings with the scientific and pet care communities, providing  benefits to pets across the globe.

Oral health

The WALTHAM™ oral health research group has been working with leading veterinary dentists and academics for over 25 years to investigate oral diseases in pets.

Gum disease is one of the most widespread conditions in cats and dogs. If not detected and left untreated, irreversible damage occurs that results in the loss of teeth and significant pain to the pet.

To design effective oral care solutions, we need to understand the specific mechanisms underlying oral diseases in cats and dogs. This research underpins Mars Petcare oral care brands.

Human animal interaction (HAI)

For over 40 years WALTHAM has investigated the special relationship between humans and companion animals. We work with leading scientific institutions to advance and share knowledge of the positive and lasting benefits of pet ownership on human and pet health.
Current research interests include the role of companion animals in healthy aging and exploring how pets can contribute to optimal development in children and adolescents.

Dog Multiple Eating
More on nutrition research
tooth brushing 220px
More on oral health research
SeniorMan Dog Poodle 1 220px160px
More on HAI research

Equine research

The WALTHAM Equine Studies Group, which is headed by Professor Pat Harris, is dedicated to advancing the science of horse nutrition and provides the science behind the SPILLERS®, BUCKEYE® NUTRITION and WINERGY® brands.


The WALTHAM Equine Studies Group partners with international collaborators to research equine nutrition and its role in the health, welfare, behaviour and performance of horses. We are committed to sharing the work with veterinarians, scientists and horse owners all around the world through journal papers, lectures and articles.
Since 2010 the Equine Studies Group and its external collaborators has published over 200 scientific papers and articles.

More on equine research

WALTHAM welfare standards

At the heart of our success is a high standard of care that ensures both the health and happiness of our pets. We call this approach Caring Science.

Cat MotherKitten 2 Ad220

Our pet welfare committee and researchers proactively work together to embrace the 3Rs of humane animal research: 

Replacement - we use alternatives to animals wherever possible: in vitro, in silico or human studies.

Reduction - Guided by our statisticians, studies are designed to use the minimum number of animals necessary for a clear outcome.

Refinement - We aim to make research an enriching experience for our pets so that they are willing partners.

More on our welfare policy

Dynamic interactive search of WALTHAM Research

Sign up for WALTHAM news