Justine McCabe from Los Angeles composed the video in time-lapse photography using images drawn from her personal challenge to take a selfie every day for a year.
The video posted to Instagram has since been viewed over 237 thousand times with over 1200 comments.
McCabe wrote on her Tumblr she began emotionally eating after her husband took his own life in 2015.
The turning point was said to have come on a regular Sunday when McCabe realised she could make more out of her life.
“I turned my pain into energy. I let it move me and push me. I was angry and I was done. It was time to shove life back,” she wrote.
McCabe is said to have lost over 57 kilos since she began her journey just over a year ago.
“The death of my husband shook me awake and made me realise I needed to make a lot of changes,” McCabe told The Mirror.
McCabe was reported to have weighed over 139 kilos at her heaviest.