Christie Brinkley's Dogs Are Her Anti-Aging Secret: 'They Are My Personal Trainers'

The 63-year-old supermodel says she keeps herself and her pups on a nutritious diet

Photo: Sean Zanni / AndrewWernerPhotography.com

At 63, Christie Brinkley graced another Sports Illustrated Swimsuit Issue, this time joined by her daughters.

It’s easy to assume that this supermodel/actress/entrepreneur must have magic oozing from her pores, but her secret to staying young is much more simple.

“My dogs keep me active and young feeling. They’ll come to me and take me for a walk or a jog,” Brinkley tells PEOPLE. “They are my personal trainers.”

These two adorable anti-aging antidotes are named Maple Sugar and Chester. Maple Sugar is a 14-year-old Labradoodle, who is surprisingly spry for her age and Chester is a younger rescue pup who is obsessed with his model mom.

“He was supposed to be Sailor’s dog. He’s really attached to me,” Brinkley says of Chester, who was originally adopted by her daughter. “I have never had an animal love me quite the way Chester does, he can’t takes his eyes off me.”

Providing both unconditional love and free personal training, Brinkley’s dogs are an important presence in her life and she treats them as such, showering them in love, personal attention and keeps them on a tasty, yet nutritional diet.

“In my beauty book, Timeless Beauty, I say nutrition is the foundation of everything, it’s the spring board. It’s the same for your pet,” she explains.

FROM PEN: Supermodel Christie Brinkley is 63 and back in SI’s Swimsuit Issue with Her Daughters!

For Brinkley, this means feeding her pets food that is designed to meet all of their needs, especially those that help them age gracefully too.

“At seven dogs and cats become seniors, that is when they need benefits that will help with aging,” says Brinkley, a spokesperson for Purina Pro Plan. “That’s why I feed my senior dog Maple Purina Pro Plan. It has enhanced botanicals and ingredients that aid in digestion, things she needs.”

After keeping her healthy and happy for so many years, Brinkley’s dogs can rest easy knowing their mom is keeping their nutrition in check so they lead long and rewarding lives.

“They are really everything they’re cracked up to be,” she says about her doggie duo. “They’re loyal and they just offer unconditional love. There is truth in the advertising.”