Doctors are also pointing out that thinness doesn’t necessarily imply health. Thin people may have “normal weight obesity,” or a normal range BMI (body mass index) paired with high body fat. There are all shapes, sizes, and fitness levels out there – not that you’d know it from a scroll through the #bellybuttonchallenge feed.

Like its cousin the  Kylie Jenner Lip Challenge, which similarly began on social media, we can now call the belly button challenge debunked. Jenner herself admitted to using lip enhancements and asked fans to stop suctioning their lips with a shot glass to look like her. Let’s hope a swift end befalls the belly button challenge works as well.

READ MORE: Kylie Jenner Asks Teens to Stop #KylieJennerChallenge