Whitney Port Gets Real About Drastic Weight Loss -- Says It Started On The Hills!

Whitney Port focuses on comfort with baggy sweats as she drops by a dispensary on an errand run around Los Angeles

Whitney Port is the epitome of elegance in a black slip dress and knee-high boots while out with her son Sonny, six, in Los Angeles

Bikini-clad Whitney Port enjoys some rest and relaxation poolside in sunny Puerto Vallarta - after speaking out about her weight battle