Kayla Itsines

Kayla Itsines is a fitness trainer, author, and entrepreneur from Adelaide, South Australia, where she was born on 21 May 1991. She is Australian with Greek heritage and identifies as Greek. Her career in fitness began around 2016, and she has been active for about 10 years. She created the Bikini Body Guides, a series of fitness ebooks, and later developed the Sweat with Kayla app, which became a major success. In 2016, Sweat with Kayla generated more revenue than any other fitness app, a notable achievement in the competitive fitness technology space. Kayla has a younger sister, Leah, who is also a personal trainer and works as a food stylist.