70-year-old Grandmother Flaunt her sexy Bikini body for bodybuilding competition...which she won

The great-grandmother from the Sunshine Coast gets to the gym at 4.30am six days a week to train for bodybuilding competitions. 

Her hard work has paid off too, as she won the over-60s section of the International Natural Body Building Australia Queensland Titles and is heading to the national titles this weekend. 

Ms Clayton spent four months training for the competition, eating smaller portions of her usual protein-rich diet - which includes a lot of vegies - and training more.

'I lost four kilograms,' she told Daily Mail Australia. 'I try to maintain a healthy lifestyle anyway, but I just cut my portions down.'

The 70-year-old isn't new to bodybuilding, having previously competed in her late 30s and early 40s.

Ms Clayton said that she decided to go back to competitions to stay active, both physically and mentally.

'It's something to focus on,' she said. 'I’m proud I can go on stage at this age in a bikini.'

70-year-old Grandmother Flaunt her sexy Bikini body for bodybuilding competition...which she won