How fast can you lose weight? Certainly not in 30 seconds. A new Instagram trend is happening and it's showing women posting before and after pics of their weight loss, some 30 seconds apart. It's just a reminder for us to not believe all those ads we see everywhere...

Using the hashtag #30secondbeforeandafter these women show what a huge difference basically just sucking it in does for one’s physical appearance in the half-a-second it takes to snap a photo.

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