Many commentators took to social media, with comments like this:
"I think the world of you... such a beautiful soul. This photo does make me concerned about you though. You have so many people that love you, Ruby. I hope you are loving on yourself too," one fan wrote undeath this photo of the Orange Is The New Black star.
Ruby's girlfriend Jess Origliasso of The Veronicas has come to Rose's defence following the online body-shaming.
"Last night with two of my favourite woman in the world! Rubes, you work so hard, and the strength of your beautiful mind and body as they carry you through all your dreams inspires every day. You don’t need this dress to shine, but god you looked perfect," the 32-year-old wrote alongside a photo with Ruby and Ruby's mother, Katia.
Ruby has previously hit back and reports she's unhealthy, taking to Instagram story to set the record straight.
This article originally appeared on InStyle Australia