Plus-sized model Alex LaRosa is proud of her obesity and showed it off in a bikini. She seems to even by decrying weight-loss and body-shaming thin girls, preaching her big body love to others. But her positive body image message is falling on deaf ears. As LaRosa called out big girls, Internet readers in droves shouted back to lose weight, and Dr. Nowzaradan of "My 600-lb Life" agreed with commenters. His advice: lose weight sooner rather than later.

Proud of obesity?

In a photo shoot for GabiFresh for SwimsuitsForAll, LaRosa, who may weight 300 pounds or more, sported a bikini top. All the "belly fat" was on display and it was captioned "She can have a tummy and still look yummy." The young African-American model posted it on Instagram bragging that this "is literally the only appropriate caption for this photo!" She says she's "so in love with" all her pics and wanted to share her "completely unedited photo of all this fat black girl magic!" There were thousands of comments on the article, mostly negative, calling overweight unattractive.

It might have gone better if LaRosa let others tell her how good she looked -- or not.

Overweight girl body-shames slender women

In an attempt to teach young women to be comfy in their own skin, LaRosa made some statements that sounded a lot like body-shaming. Her point was that beauty comes in all sizes, not just "thin, white, abled-bodied" people. She called small sizes "conventional" and "unrealistic" on Instagram. But those comments are curious given that two-thirds of Americans are overweight and over 34 percent are obese. It would seem that "fat" is the norm and "thin" unconventional. By unrealistic, LaRosa was likely thinking of the Kim Kardashian [VIDEO] or Kailyn Lowry mentality that uses plastic surgery to achieve an idealized body. Or she may be referring to the dysmorphic body image that drives anorexia.

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Weight concerns equal fat-shaming?

Not every slender person has an eating disorder. Just as some struggle with weight-loss, many others struggle with weight gain. To blame thin people for being thin or to suggest that they diet too much is no less hurtful than blaming fat people for not trying to slim down. If slender people have a skewed self-image, so do fat people who ignore their weight problems. Neither is seeing themselves accurately. To say that you love yourself as you are is one thing. Mama June Shannon of "Honey Boo Boo" and "From Not to Hot" expressed this by saying that she was hot before weight-loss. But she was not thin or at a safe body size. If viewers have learned anything on "My-600-lb Life" it's that weight gain increases if you ignore it and that it's unhealthy. As one commenter put it, like showing off your rotten teeth and expecting people to admire your dental health, LaRosa says to ignore "haters" who say anything different.