Demi Lovato has always been outspoken about her struggles with addiction and a past eating disorder.

But the singer took to Instagram last week after an article commented on her "fuller figure" in its headline.

"I am more than my weight," she began in a series of Instagram stories captured by fan sites. "Unlike the past, I'm not triggered, I'm not upset that someone wrote a headline about my 'fuller figure.' I'm angry that people think it's OK to write headlines about people's body shapes."

"Especially a woman who has been so open about being in recovery from an eating disorder," Lovato, 26, added.

The "Sorry, Not Sorry" singer added that she's not mad about it for herself, but for anyone influenced by "diet culture."

"Articles like this only contribute to that toxic way of thinking," she added.

Lovato then addressed her fans directly as she wrote, "Don't listen to negative diet culture talk. You are more than a number on a scale."

The singer even shared an exchange between herself and the author of the piece, who apologized and said he learned from her comments. She asked her fans to take it easy on him and never "respond with hate."

"Now my fuller a-- is going to sleep," she later joked.

The inspiring posts come during a resurgence for Lovato after a scare last year. Lovato was rushed to the hospital last summer following a suspected overdose.

"I am sober and grateful to be alive and taking care of ME," she tweeted in December. She later posted loving photos, spending the holidays with friends and family.