Singer Demi Lovato has spoken about the misconceptions about having an eating disorder in a series of tweets, MTV says.

Lovato, who has been a staunch advocate of mental health awareness, started off by tweeting to user @DBSAlliance, an organization that has shown her support in her struggles with mental illness.

"Having an eating disorder doesn't show 'strength.' Strength is when [you] are able to overcome your demons after being sick and tired for so long," she said in another tweet.

She then adressed the misconceptions surrounding eating disorders such as anorexia and bulimia, saying a person who suffers from either of the sickness do not choose to be inflicted by it. "It's the ignorance and lack of education on metal health that continues to but mental health," she added.

The "Skyscraper" singer ended the series of tweets by saying she wasn't ranting but merely reminding people of the perils of not addressing mental disorders properly.

Lovato, who has previously opened up about her struggles with bipolar disorder and depression, spoke about her struggle with body image in August, according to Us magazine.

The singer posted a collage of photos of herself attending awards shows from 2008 to the present on her Facebook page and captioned it: "I remember the day I wore the dress in the very first picture. I remember asking for spanx to flatten my stomach because I used to feel so heavy and 'fat.'"

She added, "Now looking at this picture, you can clearly see my hip bones. It makes me sad because I wasted so many years ashamed of my body when I could've been living the happy and healthy life I live today."

Lovato also joined the Mental Health Listening and Engagement Tour in August, according to Women's Health magazine. The tour aims to educate people about bipolar disorder.