Scientific Results Archives - Dog Aging Project

A family sits on a bench outdoors with their small, fluffy dog. The dog is held by the person in the center, who is wearing glasses and a striped shirt. A person in a purple shirt is to the left, and a child in a purple top is to the right.

Dogs and humans share biomarkers of mortality

Published on March 26, 2026

Dog Aging Project researchers wanted to know if molecules measured in blood samples from pet dogs could be used to predict the risk of death as the dogs age.

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.

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.

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: Test of Rapamycin in Aging Dogs (TRIAD): study design and rationale for a prospective, parallel-group, double-masked, randomized, placebo-controlled, multicenter trial of rapamycin in healthy middle-aged dogs from the Dog Aging Project

Published on December 22, 2025

This paper describes the TRIAD clinical trial, which is part of our ongoing work to understand healthy aging in dogs.

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.

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.

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.

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.

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.

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.

Scientific Results