Christopher Schwarzenegger is drawing attention after debuting a dramatic weight-loss transformation in a new family photo shared by his sister, Katherine Schwarzenegger Pratt, on Instagram. The Aug. 22 post showed the 27-year-old looking noticeably leaner alongside mom Maria Shriver, brother-in-law Chris Pratt, and uncle Anthony Shriver.

Christopher Schwarzenegger shows off his impressive 30-pound weight loss during a family boat day with Arnold Schwarzenegger, Maria Shriver, and siblings.