Is this today's biggest public health threat?

TikTok has transformed the way people learn and talk about health. On one hand, the social media platform has increased awareness and stigma about countless physical and mental health conditions. But more and more evidence is revealing that the vast majority of health information shared on TikTok is false. 

Content creators selling snake oil

Young people—especially women—love the app for its brief, engaging reels and increasingly look to it to find health information. In fact, one survey found that 1 in 5 Americans turn to TikTok for medical advice before reaching out to a physician.^[] Health misinformation isn’t anything new. It’s been around for decades. As Jada Willis, PhD, an associate professor at the Burnett School of Medicine at Texas Christian University, says: “It's literally where the term ‘snake oil’ comes from.” 

Here’s how TikTok is changing how people think about health—and how doctors can keep their patients safe. 

The consequences can be serious

A report recently published in the journal Otolaryngology–Head and Neck Surgery found that  roughly half of popular TikTok videos about sinusitis were posted by nonmedical influencers, and that less than half of these videos (46.7%) were factual.^[]

Another study found that 1 in 5 TikTok videos likely contain misinformation, and a report evaluating TikTok videos about gynecologic cancer discovered that most weren’t reliable.^[][]

The consequences of this can be significant. Health misinformation can prevent people from seeking treatment for chronic diseases like cancer and diabetes. It can also trigger mental health issues like anxiety and depression and cause people to diagnose themselves with a condition they don’t actually have.^[]

Take a look at the COVID-19 pandemic: We now know that false information about the coronavirus and vaccines caused people to not get vaccinated, reject public health measures like social distancing and masking, and use unproven treatments like Ivermectin.^[]

Thanks to trends that have gone viral on TikTok, people are using supplements instead of antibiotics to treat infections, eating raw meat because they’ve been told it helps them absorb nutrients better, and trying various crash diets. 

Sketchy nutrition reels

Cesar Sauza, MS, RDN, a registered dietitian and clinical nutrition manager at AltaMed Health Services, isn’t surprised to see that only around 2% of the nutrition content on TikTok is accurate. During his dietitian consults, he spends a lot of time trying to dispel various nutrition myths. “Patients frequently bring up information they either saw on social media or [that] someone else told them—who saw it on social media—and there is a lot of self-diagnosing and self-treating when it comes to nutrition-related conditions,” Sauza says.

According to Dr. Landry, many content creators share diets or nutrition plans as if they’ve been heavily researched—or as if they will lead to the same results in everyone. Nutrition needs to be individualized: What works for one person may not work for another.^[] “Some content creators without solid education and training in nutrition may also be unaware of unintended consequences of including or excluding certain foods from their diet,” Dr. Landry says. 

Harmful messages about food and nutrition can contribute to body image and self-esteem issues and can increase people’s risk of developing an eating disorder, research shows.^[] “Restrictive diets can lead to disordered eating patterns and an unhealthy relationship with food, especially among adolescents and young adults,” Dr. Landry adds.

How doctors can keep patients safe

Certified healthcare providers have the power to combat health misinformation. Ask your patients about their concerns and, instead of judging them, listen and respond with empathy.^[] Then, offer guidance and lead them to verified sources of accurate information. 

Dr. Landry recommends encouraging patients to make sure that content creators are qualified medical professionals, such as board-certified physicians or registered dietitian nutritionists. Another tip is to look for popular buzzwords like “toxins” or “detox,” as these can signal some red flags, Dr. Landry adds. Second-guess any posts that seem extreme or absolute: “A post that encourages you to always or never eat or do something is usually not sound advice,” Dr. Landry says.