A TikTok trend in which users pretend to show “before and after” weight loss photos is being criticized by some as fatphobic.

Using the popular editing tool CapCut, trend participants have been applying an effect called “Big Face” to make their faces appear larger. Then they export the modified image to TikTok for a comparison video: the Big Face selfie versus the original selfie, with the label “What I would look like if I lost 100lbs.” In other words, the “after” images are actually photos of how the users currently look.

The videos have been met with criticism by some online who say the trend mocks plus-sized individuals and stigmatizes weight gain.

“People who are relatively in shape are making fun of fat people,” said Julia Barberi, 31, who posted a critical video about the trend on TikTok. “It’s a terrible filter