Carolyn Hartz definitely has defied all stereotypes for a 70-year-old granny. Her fabulous bikini body and wrinkle-free skin would be coveted by women even decades younger.

 Sweetlife Photo

The Australian granny’s seemingly inspiring story, however, has sparked a backlash from netizens after she claimed that it’s mostly due to her sugar-free diet.

Carolyn said that she had been sugar-free for nearly three decades after a diagnosis of pre-diabetes frightened the sweet toother to shake off her previous sugar addiction.

 Sweetlife Photo

But that doesn’t mean she was determined to ditch her sweet lifestyle. At the suggestion of her doctor, Carolyn turned to Xylitol, a natural alternative that could be extracted from woody fibrous plant materials such as birch trees and corn cobs, to satisfy her craving. During the following years, she even founded her own company to sell the sweetener and wrote cookbooks on how to use it.

 Sweetlife Photo

Carolyn acknowledged that proper exercise, good sleep and mindful eating also helped maintain her youthful physique.

 Sweetlife Photo

 Sweetlife Photo

 Sweetlife Photo

She also admitted that she has had some cosmetic work done, but argued that’s not the vital part to her amazing look. “Yes I do get some maintenance done, but surgery is not the answer to a healthy well-being.”

Despite all her stunning bikini shoots, the granny’s recipe for youth doesn’t win the hearts of many netizens.

Facebook screenshot.

Facebook screenshot.

Facebook screenshot.

 What's you take on this youthful granny?