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.

After Christopher Schwarzenegger—the youngest son of Arnold Schwarzenegger and Maria Shriver—detailed his weight loss journey, sister Katherine Schwarzenegger showed off the results on the 'gram.

Christopher Schwarzenegger has come incredibly far in his weight loss journey. Arnold Schwarzenegger and Maria Shriver’s 27-year-old son showed off his dramatic weight loss transformation in new photos shared by his sister, Katherine Schwarzenegger.