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. 2020 Jul 14;22(7):e17626. doi: 10.2196/17626

Table 1.

Category definitions and examples of classificationa.

Categories and definitions Examples of classification
Medical (clinical or epidemiological information) “For #EatingDisorderAwarenessWeek remember that1) ppl with eating difficulties are not always underweight 2) it’s not about wanting to diet and be thin 3) recovery is not as simple as “eat a bit more to recover” 4) ED’s are life threatening illnesses”
Testimony (expression of experience)
  • “When I was about to become a teenager, my parents put me on Weight Watchers. I have been battling Anorexia since then. Dieting is one of the most common antecedents of disordered eating in young people. #WakeUpWeightWatchers”

  • “We are warriors whether we are still battling this war or we have overcome and conquered it. We stand together in a battle which costs lives and relationships but we stand together. #EatingDisorderAwarenessWeek”

  • “My younger sister has this too - as if she is cured and we can now resume normal life and carry on from where we left off. But everything has changed. #StateNotWeight #EatingDisorderAwarenessWeek”

  • “As someone who suffered from an ED after dieting I am so worried about promoting weight watchers to teenagers. It may be dangerous. #WakeUpWeightWatchers”

Pro-ana (pro–eating disorder content, promoting compensatory behaviors or disordered eating for weight loss)
  • “Ohh wow my dad really bought me the scale I wanted. I'm so excited but at the same time it's better he doesn't know why I really wanted it so bad. #eatingdisorder #proana #ed #rexi”

  • “I can’t eat because I’m allergic to calories. #ana #mia #anorexia #anorexic #anoressia #anoressica #anorexie #anorexique #vita #lavie #mystory #Mylife #conversation #quote #quotes #meme #memes #MEMES #anamia #proana #eatingdisorder #diary #mydiary #me #life”

  • “Skip dinner, wake up thinner. #Eatingdisorder. Inline graphic

  • “Just think how all of this pain will be worth it in the end #thinspo #thin #skinny #eatingdisorder #anorexic #anorexia #mia”

Anti-ana (expressing concerns regarding pro-ana content) “As the mom of a teen who struggles with an eating disorder, seeing WW target teens makes me worry. It is not correct to tell kids that a number on the scale is what gives them their value. #livelife #smile #behappy #BodyPositivity #WakeUpWeightWatchers”
Help offer (promoting help- and treatment-seeking behaviors)
  • “It's #EatingDisorderAwarenessWeek If you have concerns about your loved ones or if you feel keen to talk to a professional counselor about your difficulties, call our confidential helpline at XXX #EDAW18 #NotAlone #HeretoHelp”

  • “Are you concerned that your child may have an #eatingdisorder? Help and support is available from @XXX”

Awareness (aim to raise awareness, combat misconceptions, or educate)
  • “Sign this petition against @WeightWatchers' insidious campaign to recruit teens to their dangerous business #WakeUpWeightWatchers”

  • “Eating disorder experts, dietitians, physicians, and advocates around the world are standing together against @weightwatchers marketing dangerous “free” summer memberships to vulnerable young people. A season of fat-shaming, a lifetime of weight cycling.”

  • “Spotting the signs: “If you suspect an eating disorder you should talk to them directly, and express your concerns –because the sooner you get help the better“ #EatingDisorderAwarenessWeek #SpeakYourMind”

aUsernames and personal names have been removed.