Having spent millions of dollars on his own quest for longevity, the entrepreneur now wants to apply the same approach to his dog, Katara
🔍 What you need to know
- Katara is a nearly 2-year-old Belgian Malinois, trained for personal protection, who accompanies Johnson almost everywhere after the biohacker stated that he receives death threats.
- Johnson wants to turn her into the “most monitored dog in the world,” complete with rigorous health tracking, diet overhauls (critiquing commercial pet food), and potential anti-aging therapies—without starting a company for now.
- The experiment holds scientific significance: dogs and humans share similar biology and diseases, and approving treatments for pets moves faster, which could yield helpful breakthroughs for human medicine as well.
Entrepreneur and biohacker Bryan Johnson, 49, famous for spending millions on his own longevity quest and for his motto “Don’t Die,” is now turning that same pursuit toward dogs.
His starting point is Katara, his nearly two-year-old Belgian Malinois, whose adoption Johnson revealed on August 20, 2026. When announcing the news, he cited a study suggesting dog owners may have about a 24% lower risk of premature death — a data point that helps explain his growing interest in canine life extension.
I got a dog.
— Bryan Johnson (@bryan_johnson) August 20, 2026
Dog owners have about a 24% lower risk of dying early.
What should I do now? pic.twitter.com/eOqo1zZowZ
The Protection Dog That Shifted Johnson’s Focus
Professionally trained for personal protection, Katara now accompanies Johnson virtually everywhere. The businessman says he receives death threats, and that’s exactly why he decided to have her by his side. According to him, the two have developed a strong bond.
Katara’s presence also drew attention at a recent anti-aging event in San Francisco, where she stayed by Johnson’s side as he encouraged tech workers to do as many push-ups as they could — one of the exercises used at the event to measure biological age indicators.
Later, Katara lay quietly at Johnson’s feet while he was interviewed by venture capital investor Sarah Guo. It was during that conversation that he explained the dog’s role: “I get a lot of death threats, so she’s my guard dog.”
Katara, who turns two in October, has become not just Johnson’s companion, but also part of his security routine — and now, part of his canine longevity project. Details about Katara and her appearance at the event were reported by Business Insider.
Katara: The Most Monitored Dog in the World
Johnson doesn’t plan to launch a canine longevity company for now. The project is centered entirely on Katara. The idea is to subject her to extremely detailed health monitoring, inspired by the same system he uses on himself, while testing various anti-aging therapies. The goal is to turn her into “the most monitored dog in the world.”
Diet: The First and Simplest Step
For Johnson, improving dogs’ health can start with what they eat. He criticizes commercial dog food for containing compounds he considers harmful — which he describes as “substances that glue the organs together” — and advocates for strict dietary changes as a relatively simple, yet potentially powerful, intervention. According to Johnson, diet would be one of the first things adjusted in Katara’s health program.
Why Canine Science Matters to Humans
Johnson’s bet goes beyond animal welfare. Dogs and humans share numerous biological similarities and comparable diseases, which could make canine longevity research useful for human medicine as well. Another key factor is regulation: drug approval for dogs can move faster than for humans, potentially speeding up certain research and discoveries.
The industry already has active players. Loyal develops drugs aimed at extending dogs’ healthy lifespan, while Rejuvenate Bio researches experimental gene therapies for aging-related diseases, including cancer and heart problems.
People Take Better Care of Their Dogs
Johnson believes the public will be receptive to the idea of advanced treatments for animals. He points out that many people are more willing to invest in their dogs’ well-being and health than in their own — something he believes could make it easier for people to embrace new approaches to canine longevity.
“Humans often take better care of their dogs than of themselves,” Johnson said, summing up the curious relationship between pet owners and their animals.
Sources & References:
- Business Insider – Bryan Johnson Wants Dogs to Live Forever
- Forbes – How Entrepreneurs Are Turning Longevity Into a Multi-Billion Opportunity
- Business Today – Bryan Johnson Adds a Dog to His Longevity Routine