King’s College London Study Connects Excessive Smartphone Dependency to Rising Disordered Eating and Body Dissatisfaction

King's College London study finds excessive smartphone use correlates with body dissatisfaction and food addiction in young people, even without a diagnosis.

By: AXL Media

Published: Mar 14, 2026, 11:12 AM EDT

Source: Information for this report was sourced from King's College London

The Emerging Correlation Between Digital Reliance and Nutrition

New clinical evidence suggests that the psychological reliance on mobile devices is creating a secondary crisis in adolescent health. According to researchers at King’s College London, Problematic Smartphone Use (PSU) is now closely tied to a range of disordered eating behaviors, even among individuals who have not received a formal medical diagnosis. The study indicate that this behavioral addiction manifests as uncontrolled eating and emotional overeating, marking a shift in how medical professionals must view the impact of ubiquitous technology on the physical well-being of young populations.

Global Data Highlights the Vulnerability of Adolescents

The scope of this research involved a comprehensive systematic review of 35 studies conducted across the globe, capturing data from a massive sample of 52,584 participants. According to the findings published in the Journal of Medical Internet Research, the average age of those impacted was 17, a critical developmental window for self-perception. The analysis reveals a consistent trend where high daily smartphone usage correlates directly with food addiction symptoms, suggesting that the digital habits formed during these formative years have profound implications for long-term health outcomes.

The Seven Hour Threshold of Psychological Distress

While many young people use mobile technology daily, the intensity of that usage appears to determine the level of clinical risk. According to the analysis, the association between phone dependency and body dissatisfaction was notably stronger in individuals who utilized their devices for more than seven hours per day. Professor Ben Carter of King’s IoPPN noted that even in non-clinical populations, the overuse of these devices is a potential source of distress, fundamentally altering how young people interact with food and their own physical appearance.