My 600-lb Life often has its audience super invested as they follow the patients’ weight loss journeys. But, a Where Are They Now? update has fans more “emotional” than some expected to be. One of the show’s stars keeps pushing on his weight loss journey while living in a van on the beach. David Nelson’s weight loss journey on My 600-lb Life began three years ago. He starred in season 10 episode 15 and had a rollercoaster ride of a time on the TLC show. At one point, David had gained weight, but after some stern words from Dr Nowzaradan, he got back on track. The star’s starting weight was 825…