Before-and-after photos give us a seriously warped view of what bodies should look like. That’s what makes the side-by-side photo Laura Mazza posted to Facebook so great. In her “before” image, the blogger behind Mum on the Run looks fit, but she wasn’t healthy. She followed a super-restrictive diet and never felt happy.

Mazza knows her “after” photo isn’t something people want to see on Facebook. “All of a sudden it’s not OK,” she writes. “It’s not pleasing to the eye anymore. It’s not a body to be admired.” But the reality is she’s healthier (and happier) today. Now she’s spreading the gospel that people of all sizes should celebrate their bodies—and she gets that’s not easy.

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