In the world of health and fitness, certified fitness instructor Cassey Ho is one of the biggest rising stars. She has a loyal following on her site, Blogilates, and millions of people watch her Pilates workouts on YouTube. But as Ho shows us in this powerful new video, there’s a dark side to all of that exposure.

After uploading a smiling post-workout selfie, Ho finds herself on the receiving end of some serious body shaming. The hurtful comments (“You shouldn’t give advice when you’re so fat” and “Take your career seriously and lose some weight”) clearly cut deep. In this tearjerker of a video, Ho Photoshops herself in real time—a smaller midsection, bigger breasts, and a shaplier behind—to show what she’d look like if she really took all the nasty body shaming comments to heart. It’s a brutal look at how words truly can tear down someone’s self-confidence and body image—even a fitness pro as fit as Ho. At the end of the video, she poses the question, “What would you change?” But after watching, the message is clear: You don’t need to change anything.