Isabelle Cornish issues a 'warning' to the people disrespecting her body.

Almost every time Isabelle Cornish shares a photo of herself on Instagram, she’s met with a flurry of commentary about her naturally slender body.

From ‘concern’ about her health to outright nastiness, the criticism has been constant — and now the Australian actress and model has decided to issue a “warning” to those who disrespect women’s bodies online, her own included.

Overnight Cornish posted a call-to-arms of sorts on Instagram, encouraging her 195,000 followers to join her in perpetuating self-love.

Warning. This is 2016, as women we have recognized and started the movement of #selflove and treating others how we would like to be treated. Social media is no place to put people down and make assumptions. Everybody is different some of us have skinny legs and some have beautiful curvy figures. There is no PERFECT, embrace each other. My social media is to share my love of health and life. I use it to share with my community content I hope to inspire you with. Where is the love for others? We are women we are strong. Join my tribe @teamlifeiz were we don’t judge.

A photo posted by Isabelle Cornish (@isabellecornish) on Jun 12, 2016 at 7:00pm PDT

“Warning. This is 2016, as women we have recognised and started the movement of #selflove and treating others how we would like to be treated. Social media is no place to put people down and make assumptions,” the 21-year-old wrote.

“Everybody is different some of us have skinny legs and some have beautiful curvy figures. There is no PERFECT, embrace each other.”

The mention of ‘skinny legs’ is possibly a reference to her full-body photo from the previous day, which drew criticism from followers who claimed her legs looked too thin.

The Puberty Blues star then pointed her followers to Life Iz, the website and Instagram community she founded with her sister-in-law Amanda Cornish.

Watch: Meghan Ramsay on the effects of poor body image. (Post continues after video.)

Life Iz is dedicated to fitness, food and healthy living, and Cornish describes it as a “tribe” that doesn’t judge women for who they are.

“My social media is to share my love of health and life… where is the love for others? We are women, we are strong,” she added.

This isn’t the first time Cornish — the younger sister of actress and rapper Abbie — has come out swinging against her social media critics.

In an Instagram post last year, she argued all forms of body shaming were “inexcusable”. (Post continues after gallery.)

“No one should feel like their body isn’t ‘good enough’. Everyone is different. There is no perfect one size for all. I may be smaller than other people but I am fit and healthy! I work out, I am very athletic and I nourish my body with a good diet,” she wrote.

“Stop comparing yourself to others and spread love and confidence not negative body image messages!”

Although criticisms of women’s bodies are often couched in “concern” for their health — ignoring the fact that genetics plays a significant role in the way we look — it’s ultimately an unhelpful and often damaging exercise.

“Commenting on anybody’s weight, whether it’s because they are ‘too skinny’ or ‘too fat’ is very unhelpful. This sort of body-policing only serves to reinforce the idea that a woman’s self-worth is directly related to her appearance,” clinical psychologist Olivia Patrick told Mamamia.

“Other people’s bodies are none of our business, and focusing and commenting on other people’s appearances will only keep us placing undue importance on our own weight.”

Something to remember.

Have you ever experienced body shaming?