A fluffy brown dog with its mouth open walks towards the camera on a dirt path lined with trees.

Scientific Results: Protein Catabolites as Blood-Based Biomarkers of Aging Physiology: Findings From the Dog Aging Project

Published on January 27, 2026

The Dog Aging Project is working to understand how and why dogs age. By studying genetics, environment, and biology, researchers hope to learn what affects healthy aging in dogs. One area of interest is the identification of aging biomarkers, which are measurements that can be made across the life of a dog that reflect their aging.

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A brown and white dog receives a liquid medication or supplement from a dropper held by a person in an outdoor setting.

Scientific Results: Demographic features, health status, and behavioral changes associated with cannabidiol use in the Dog Aging Project

Published on January 5, 2026

Cannabidiol is a substance extracted from Cannabis sativa plants (i.e., cannabis and hemp) that may have valuable medical properties.

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a dog eating out of a purple bowl in a kitchen

Scientific Results: Findings from the Dog Aging Project: home-prepared diets for companion dogs feature diverse ingredients, and few are nutritionally complete

Published on October 30, 2025

This study explored what dog owners like to cook up for their furry friends at home. We were curious about the ingredients they choose and whether those meals provide the essential nutrients that keep our pups healthy and happy.

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A woman sits next to a window, viewing her laptop, which displays the Dog Aging Project Homepage, with her dog sitting next to her.

Scientific Results: Comparing owner reported and genetic breed identification reveals high concordance in a large cohort from the Dog Aging Project

Published on September 29, 2025

Like people, dogs have many traits that make them unique individuals. They also have some traits and characteristics that they share with other dogs.

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a dog drinking water from a hose

Scientific Results: Testing for heavy metals in drinking water collected from Dog Aging Project participants

Published on September 22, 2025

Our team tested the drinking water of dogs who live in homes served by wells.

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a person sitting on a bench with their dog

Scientific Results: Environmental exposures and health outcomes in dogs differ according to geographic region in the United States among Dog Aging Project participants

Published on August 6, 2025

This research looked at how where a dog lives in the U.S. affects the kind of exposures it faces and the types of health problems it gets.

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a bulldog drinking water out of a red bowl outside on a patio

Scientific Results: Food motivation and owner feeding management practices are associated with overweight among Dog Aging Project participants.

Published on July 31, 2025

This study looked at how food motivation and owner feeding practices were associated with overweight/obesity in dogs.

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A laboratory setup with test tubes, pipette tips, pipettes, and a Dog Aging Project box with a dog image, all arranged on a white surface with a tiled wall in the background

Scientific Results: Rationale and design of the Dog Aging Project precision cohort: a multi-omic resource for longitudinal research in geroscience

Published on July 30, 2025

This paper introduces our Precision Cohort, which collects important biological information from dogs in our study group.

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a person in a lab using a pipette

Scientific Results: The effects of resting time, centrifugation time, and technician training on plasma sample quantity and quality: Implications for the Dog Aging Project

Published on June 13, 2025

Members of our Precision Cohort participate in an annual collection of routine samples like bloodwork (similar to an annual check-up), urine, feces, and hair collected by their primary care veterinarian.

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