About Us

We have been advancing research into the nutrition and health of pets for over 50 years.

WALTHAM is the fundamental science centre for Mars Petcare and focuses on the nutrition and wellbeing of dogs, cats, horses, birds and fish, and their benefits to humans.

At Mars Petcare we are committed to creating a better world for pets and the knowledge generated by WALTHAM is vital in bringing this vision to life. We take pride in sharing our key findings with the scientific community, enabling pets around the world to benefit from our work. 

Since our first scientific paper over 50 years ago,  we have shared our expertise through over 1700 publications, including more than 600 peer-reviewed journal articles. In addition, our researchers collaborate with some of the world’s most renowned veterinary and nutritional scientists.  

Together we share our research findings at conferences and events around the globe, including our open forum, the WALTHAM International Nutritional Sciences Symposium. WALTHAM has pioneered many important breakthroughs in pet nutrition. In collaboration with the world’s foremost research institutes, it provides the science and expertise underpinning leading Mars Petcare brands including: 


Caring Science

At the heart of our success is a high standard for pet care. Find out how we achieve it.

Latest News and Events

Come and check out the latest in science and research.