Many female inmates in Thailand suffer the monthly indignity as they are faced with lack of sanitary products. With women making up 14% of the prison population, Thailand has one of the world’s highest ratio of female inmates.

Back at home, in the north-eastern province of Loei where she was born, getting stared at is something she's now used to. "People don't recognise me when I go back to my hometown. They are surprised of how big I am and think I look transgender," she says. Even in the beach town of Pattaya, where she has lived for the past eight years and where bodybuilding is gaining popularity, Fon says fellow Thais sometimes see her as a "freak". Several of them don't speak Thai with her, assuming she is a Filipina or Brazilian.