"She thinks you're 'UGLY' just as you are. She also doesn't understand that a huge part of why I hate Photoshop is how it's used as a tool of erasure of ethnicities, our skin colour, our features. This is embarrassing white privilege and deep misogyny. Slow clap @NadineORegan," Jamil wrote.
Lawson has spoken before about TV executives trying to photoshop her, saying she "didn't want to become what (she's) not."
"I could see them wincing when they saw my tummy bulging out of my dress. And when I say bulging, I don't mean huge. I just mean you could see the roundness. It was a tummy," she told the Telegraph.
"I really didn't want to become what I'm not. I'm all for taking exercise so that I can eat as much as I can without getting too huge but, nevertheless, I didn't want to be turned into a plastic creation.
"I wouldn't want to have to pretend to be something I'm not just for my own anxiety levels," she said.