“Under the Thinfluence”: Algorithm Machine Fuels Deadly Trend

Person trying on oversized pants in front of a mirror

A young woman named Luka started eating healthy and ended up trapped in an obsession that consumed her life — and a new SBS Dateline investigation reveals she is far from alone.

Story Snapshot

  • SBS Dateline’s report “Under the Thinfluence” exposes a new wave of social media influencers who promote extreme thinness to millions of followers.
  • A real case study, a young woman called Luka, shows how a simple interest in healthy eating can spiral into a dangerous obsession driven by online content.
  • Forty percent of American adults now get health information from social media influencers, yet only 10% fully trust what they hear.
  • Social media platforms continue to profit from this content while doing little to stop it.

When Healthy Eating Becomes a Dangerous Obsession

Luka did not set out to develop an eating disorder. She started the way millions do — watching clean eating videos, following wellness accounts, and trying to make better food choices. But the content she consumed daily kept pushing further. Smaller portions. Stricter rules. A relentless focus on thinness dressed up as health. Before long, what began as self-improvement had become something she could not control.

Her story is the human center of SBS Dateline’s investigation, reported by journalist Rhiona-Jade Armont and aired in June 2026. The report calls this new breed of content creators “thinfluencers” — people who build large online audiences by glamorizing extreme thinness, often wrapped in the language of wellness, discipline, and self-care. The packaging looks healthy. The message underneath is not.

Wellness Culture Is the Perfect Disguise

This is what makes thinfluencers different from the pro-eating-disorder content of earlier internet eras. That older content was easier to spot and easier to ban. Today’s version hides behind green smoothies, morning routines, and aspirational lifestyle branding. It does not say “eat less.” It says “eat clean,” “listen to your body,” and “discipline is freedom.” The harm is real, but the language makes it almost impossible to challenge without sounding anti-health.

Research backs up the concern. A study published in the journal CyberPsychology found that young adults who follow health and diet influencers do tend to eat more fruits and vegetables — but they also report significantly higher levels of emotional distress than people who do not follow such accounts. Better habits and worse mental health at the same time. That is not a trade-off most people knowingly sign up for.

Millions Are Watching, and Platforms Are Cashing In

The scale of this problem is hard to overstate. Pew Research Center found that 40% of American adults get health and wellness information from social media influencers or podcasts. Only 10% of those people say they fully trust what they hear — yet they keep watching. That gap between trust and consumption is exactly where thinfluencers thrive. Followers know something feels off, but the algorithm keeps serving the content anyway, because engagement pays.

Platforms like Instagram and TikTok have not issued specific bans or major policy changes targeting this type of content. That silence is not an accident. Extreme wellness content drives clicks, shares, and ad revenue. Asking platforms to police thinfluencers is asking them to cut off a profitable content category. Common sense says that is a conflict of interest that will not resolve itself without outside pressure.

The Debate Over What to Call Them

Not everyone agrees the term “thinfluencer” is helpful. One Facebook user, Geoff Mfield, pushed back directly at SBS’s framing, arguing the label gives dangerous people the attention they crave and that a blunter description would be more honest. That is a fair point worth taking seriously. Names matter. Branding someone a “thinfluencer” can make them sound edgy and interesting rather than harmful.

At the same time, naming a trend is often the first step toward addressing it. The term creates a category that journalists, parents, and policymakers can point to. Whether the label helps or hurts the cause is a genuine debate — but the underlying behavior it describes is documented and real, and Mfield’s frustration reads more as impatience with soft language than a denial of the harm itself.

What Parents and Families Need to Know Right Now

Systematic reviews of social media’s health impact confirm that platforms regularly expose users to extreme calorie restrictions and unregulated dietary trends. Young people are the most vulnerable, and they are also the most active online. Nearly 30% of Gen Z and millennials say they are prioritizing wellness significantly more than a year ago. That is not a bad instinct. But without critical thinking skills and parental guidance, that instinct can be hijacked by accounts that profit from insecurity.

The Dateline investigation does not offer easy answers, and that honesty is worth respecting. There is no simple ban that fixes this. But shining a light on how ordinary wellness content can slide into something genuinely dangerous is exactly the kind of journalism that matters — especially when the platforms profiting from the harm show no urgency to stop it.

Sources:

youtube.com, digitalvoices.com, gen-zine.com, pewresearch.org, swgfl.org.uk