Reporter: This five-second animation says it all. The shape-shifting transformation amanda achieved in one year. I had low self-esteem. Reporter: Starting at 222 pounds, amanda took these five photos... See More
Reporter: This five-second animation says it all. The shape-shifting transformation amanda achieved in one year. I had low self-esteem. Reporter: Starting at 222 pounds, amanda took these five photos of her remarkable weight loss, hoping they would inspire her to stay on track. I knew I had to start somewhere. And I figured, if I did it at least once a month, after the end of however long it took, i would have this really cool end product. Reporter: But in the year since she posted the pictures, she's gotten nearly 3 million views. One person apparently so inspired, he made this animated before and after time lapse, which is now going viral. Amanda says eating a high-protein diet, portion control and exercise is to thank for her new weight. But what has so many buzzing, is how drastically her body changes in the photos. The waist got smaller. But the more significant changes occur inside our bodies. Change of one sense of self, to physiology, to internal metabolism. Reporter: Amanda isn't the only person snapping weight loss selfies for motivation. Julia snapped herself in 200 different outfits during her weight loss journey last year. It's unbelievable for me to think about where I am right now and think about who I was at that time. Reporter: As for amanda, along with her whole, new body, she says she's focusing on her health and helping others. I don't think I was actually fully prepared for the amount of emotional investment. People bare their souls when they want to take back their health. Reporter: Even when it comes in the form of a little motivational animation. For "good morning america," abbie boudreau, abc news, los angeles. Congratulations. Slow and steady wins the race. Absolutely. Speaking of awesome, it's
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