Allen has been quite outspoken regarding her body image throughout her career. In an interview for "Lorraine", an ITV breakfast program, Allen mentions that she "used to sleep for days so that didn't eat" and that her relationship with her body was "not great" in her 20s. When asked about being influenced by the pressure of the music industry to "look a certain way in order to sell records," she replied that due to her defiant way of dealing with these unrealistic expectations, she was often criticized far more than the average musician. In January 2021, Allen gave an interview to discuss how she became addicted to the prescription drug Adderall in 2014 in order to lose weight before supporting Miley Cyrus on her Bangerz tour. She began a journey of recovery soon after when she was tempted to try Heroin.