Christie Brinkley Weight Loss & Beauty Secrets: 61-Year-Old Supermodel Showed off flat abs During her Vacation in Turks and Caicos [Photo]

At 61 years old, supermodel Christie Brinkley turned heads during her vacation in Turks and Caicos with her flat abs and hot bikini body.

Brinkley managed to maintain her beauty and health through vegan and vegetarian diet that she was on when she was 13, Celebrity Health Fitness reported.

"I made the decision [to become vegetarian at age 13] because I loved animals and didn't want to be a part of the slaughter industry, but I've been reaping the benefits of that karma ever since," she said. "I've avoided the constant antibiotic injections into animals and the growth hormones. If you ask me, growth hormones are probably very aging, if it's trying to make cattle age faster."

She adds that a positive attitude also plays a huge role in her youthful look. The outlet adds that Brinkley also takes vitamins and anti-aging supplements for smooth skin and great hair. For her exercises, she does light weightlifting and yoga every day as well as takes spinning classes at a gym.

The model posted multiple photos of her Christmas vacation on the island on her Instagram page. Brinkley captioned one photo which gave tips on how to stop photo aging.

"Timeless Beauty Tip: when doing sports or are on the water it's crucial to stop photoaging by protecting your skin I start by moisturizing my face neck and chest with my own anti-aging SPF And IR Defense Sunblock called Recapture 360.. Allow to sink in," she wrote. "Then I like Neutrogena's range of spray-on sunblocks for the body..then I use a foundation with SPF 30 or higher on my face to add yet another layer of protection to my face. Look for rash guards that come treated for further sun protection and never forget your hat! This one ties to stay on even in the strongest wind! Enjoy!"

Timeless Beauty is a lifestyle book by Christie Brinkley. It is currently out and available on Amazon.

The former Sports Illustrated swimsuit model shared that she has never had any surgery but is not against it, Examiner reports.

"I'd never say never [to plastic surgery]," she said. "But there are so many other non-invasive choices that address sagging, wrinkling and discoloration."

The outlet adds that Brinkley gets "special facials" every month to iron out some wrinkles.

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