The Impact of Social Media Misinformation on Food and Nutrition Beliefs

In today's digital age, social media platforms like TikTok and Instagram have become major sources of nutrition advice, but much of this information is misleading or false. During the COVID-19 pandemic, the proliferation of diet-related misinformation accelerated, with various influencers promoting unsupported or debunked diet trends. Notable examples include the carnivore diet, which advocates exclusive consumption of animal products, and campaigns blaming seed oils for health issues—all claims that lack scientific backing and have even been endorsed by prominent figures.

Research indicates that nearly half of online nutrition content is of low quality, and the passionate debates these topics spark often resemble tribal conflicts. People's strong emotional ties to their food choices are deeply rooted in personal identity, cultural background, and social belonging. Fad diets often serve as more than just health regimes—they provide communities and a sense of purpose. These diets are frequently framed in moral or religious terms, emphasizing notions of 'good' versus 'bad' foods, thereby reinforcing beliefs that are resistant to challenge.

The environment significantly influences our eating behaviors. Factors such as food marketing and the accessibility of certain foods shape choices on a physical and psychological level. Scientific studies show that exposure to food advertising can activate brain regions associated with eating, leading to increased food intake.

Given this context, misinformation on social media becomes a powerful engine fueling food-based attachments and dietary myths. The emotional and identity-driven nature of these beliefs makes correcting misconceptions challenging. Recognizing the signs of biased or overly enthusiastic dietary promotion is key to making informed decisions about nutrition.

As consumers, evaluating the credibility of online advice and understanding the complex factors influencing our food choices are crucial steps toward healthier eating habits amidst an infodemic. The spread of misinformation not only affects individual health but also contributes to broader public health challenges.

source: https://medicalxpress.com/news/2025-09-social-media-nutrition-misinformation-fuels.html