Lifestyle Health Model Iskra Lawrence on Her Instagram Response to Body Shamer: 'Sometimes When You Have a Bully You Have to Stand Up for Yourself' Lawrence was afraid of what her young fans would think if they read the comments By Julie Mazziotta Julie Mazziotta Twitter Julie Mazziotta is the Sports Editor at PEOPLE, covering everything from the NFL to tennis to Simone Biles and Tom Brady. She was previously an Associate Editor for the Health vertical for six years, and prior to joining PEOPLE worked at Health Magazine. When not covering professional athletes, Julie spends her time as a (very) amateur athlete, training for marathons, long bike trips and hikes. People Editorial Guidelines Published on April 6, 2016 01:30 PM Share Tweet Pin Email Photo: Rick Turner Model Iskra Lawrence won’t stand for body shamers – so she shut one down in the most epic way possible. After one Instagram user called her a “fat cow” who is “eating too many bags of crisps,” the Aerie model turned his words around and posed for a photo while covered in bags of potato chips. “Sometimes when you have a bully you have to stand up for yourself,” Lawrence tells PEOPLE. “You need to say ‘FU’ sometimes to people. Online trolls are not okay. I was trying to make something positive out of it.” “I never reply to anything. I always leave alone negative comments,” she says. “But my followers see this. I don’t want my followers to think they can’t be vocal.” “That’s something I’ve learned from age and experience, there’s nothing wrong with sticking up for myself. But when someone puts it online – a comment young girls are going to read,” she says. “Some people from my fan pages messaged me and told me they felt really upset, so that response, it’s for everyone.” RELATED VIDEO: Tyra Banks Shuts Down Body Shamers With the help of a photographer and stylist, Lawrence came up with the photo that quickly gained almost 70 thousand likes. And for fun, she added a NSFW, slo-mo video of herself having a snack. “This is for anyone who has ever been called FAT,” Lawrence writes in the caption. “I eat whatever I want in moderation. I will eat crisps but I’ll also make healthy home cooked meals and workout regularly. The message is who gives a F what anyone else thinks of you. YOU are the only one who decides yourself worth.” “Let that be a lesson to people. You shouldn’t be saying those things,” Lawrence tells PEOPLE. “It’s not going to affect me. I’m still a confident person.” • Reporting by SHEILA COSGROVE BAYLIS