Background: With the rapid rise of short-form video platforms like TikTok, Instagram Reels, and YouTube Shorts, social media has become a dominant source of health and nutrition information, particularly among adolescents and young adults. These platforms use engagement-based algorithms to amplify content, often prioritizing viral appeal over scientific accuracy. This critical analysis examines the global health implications of algorithm-driven nutrition content, specifically its impact on the behaviors, beliefs, and wellness outcomes of young people. The study evaluates both harmful and beneficial trends, with a focus on widely circulated content, such as “What I Eat in a Day”, “Girl Dinner”, and influencer-led dietary advice, including carnivore, keto, and detox diets.
Methods: A qualitative content analysis was conducted on high-engagement videos, assessing nutritional accuracy, cultural framing, and target demographics.
Results: Findings reveal that misleading or restrictive diet content disproportionately targets young women, normalizes disordered eating behaviors, and distorts public understanding of evidence-based nutrition. However, social media also serves as a platform for positive trends, including cultural food revival, affordable meal-preparation education, and accessible gut-health promotion.
Conclusions: This duality underscores the need for public health interventions to enhance youth media literacy, promote culturally relevant health messaging, and advocate for greater algorithmic transparency. By addressing the risks and amplifying the benefits of digital nutrition environments, global health practitioners can more effectively engage with youth populations and promote healthier, more informed dietary behaviors across diverse cultural and socioeconomic contexts.
