On Sunday, Tara Reid posted a video to Instagram showing off her costume on the red carpet at Maxim's Halloween party. But all fans could talk about was her skinny physique.

The 40-year-old was hounded in the comments over her thin appearance, with one commenter writing, "Clearly you are struggling mentally and physically…you've gone down this route before. I really hope you can recover and find your health and happiness again, Tara!"

MORE: Kim Kardashian Looks Skinnier Than Ever in a Sheer Lace Dress — See the Pics!

Others told the actress to "eat," while someone else wrote, "Dude you are nasty skinny and I used to think you were super sexy."

This isn't the first time Tara has been called out over her weight. Fans criticized the blonde's bikini body after she posted pics from a vacation in 2015.

"I'm just a small-boned girl, you see?" she told TMZ in 2014. "So if you wanna get mad at me cause I'm skinny, go ahead."

Scroll through the gallery below to see Tara's controversial swimsuit photos.