[Nicky91]

Thiel was overweight during her youth. She started bodybuilding in 2012 and lost over 25 kilograms within three years

She runs several social media accounts and offers an online fitness course. In 2015 she took part in the TV total diving competition and in 2016 and 2017 in the big ProSieben dodgeball championship. From 2017 to 2019, she coached the online contestants on The Biggest Loser and from 2017 to 2019, she starred in the docu-soap Fitness Diaries.

Under the brand name "Sophia Thiel", a fragrance series, fitness fashion collection, guidebooks and cookbooks were created. She has been a cover model for Women's Health several times.

Thiel lived in Rosenheim, Upper Bavaria. After breaking up with her boyfriend, who took her to fitness training, she moved to Munich in 2018. In May 2019, she announced in a YouTube video that she was withdrawing from social networks for personal reasons, but reported back online in February 2021. In April 2021, she spoke about her eating disorder bulimia nervosa for the first time on her YouTube channel and presented her newly published book, which deals with it. Also her earlier books, e.g. Simply slim and fit. With 120 recipes for the dream figure, she continued to advertise. In May 2021, Sophia Thiel and Bernhard Hoëcker were part of the winning team of Who knows what is going on?. On Christmas Day of the same year, she appeared as a contestant on Dalli Dalli, where she formed the "Team Trendsetter" with Amira Pocher