In September 2013, she won the title of Nutrition specialist. She started the blog Healthy Plan by Ann, which provides nutritional advice, workout plans and a food line Foods by Ann.
On June 22, 2013, she married Robert Lewandowski, a Polish football player, in Serock. In December 2016, Lewandowski announced that Anna was expecting their first child, and was five months pregnant. She gave birth to their daughter Klara Lewandowska on May 4, 2017.