Instagram CEO Denies Addiction in Teen Mental Health Trial – Zuckerberg to Testify

Instagram CEO Defends Platform Against Addiction Claims in Landmark Trial

Adam Mosseri, CEO of Instagram, testified in a California court on February 11, 2026, asserting that users cannot be “clinically addicted” to the social media platform. The testimony came during a trial focused on allegations that Instagram, along with other social media companies, intentionally designed their platforms to be addictive, leading to mental health issues in young users. Further testimony is expected from Meta founder Mark Zuckerberg and YouTube CEO Neal Mohan, who are anticipated to argue a lack of scientific evidence linking social media use to addiction.

Mosseri differentiated between “clinical addiction” and “problematic use,” stating that while individuals can certainly use Instagram in a way that negatively impacts their lives, this doesn’t equate to a medically recognized addiction. He drew a parallel to binge-watching television, noting, “I’ve said I was addicted to a Netflix show, but that’s not a clinical addiction.” He emphasized that the type of addiction being discussed in the lawsuit – one requiring medical treatment – is distinct from simply spending excessive time on a platform.

When questioned about whether Instagram prioritizes user engagement over well-being, Mosseri denied the claim. He acknowledged that some users experience positive feelings from spending time on the platform, stating, “People have a good time on Instagram, and that happens,” but insisted that fostering such engagement isn’t a deliberate strategy. He also addressed concerns about Instagram’s beauty filters, which have been accused of promoting unrealistic beauty standards and contributing to body image issues. Mosseri stated that balancing “safety and freedom of expression” is a constant challenge, and that Instagram strives to be as safe as possible while minimizing censorship.

The lawsuit was initiated by a 20-year-old plaintiff, identified as K.G.M., who alleges that early and prolonged use of social media contributed to anxiety, depression, and physical ailments. K.G.M. Began using YouTube at age six, Instagram at eleven, and subsequently used Snapchat and TikTok, claiming these platforms were designed to be addictive. This case is considered a “bellwether trial,” meaning its outcome could significantly influence the outcome of over 1,500 similar lawsuits filed against Meta, Snap, TikTok, and YouTube.

The trial is being closely watched by legal experts and tech industry observers. Mark Lanier, the attorney representing the plaintiffs, has a track record of securing substantial settlements in similar cases, notably the Johnson & Johnson baby powder cancer litigation. Zuckerberg is scheduled to testify on February 18, 2026, with Mohan expected to follow at a later date.

The core of the legal argument centers on whether social media companies knowingly designed their platforms with features intended to maximize user engagement, even at the expense of mental health. Features like endless scrolling, push notifications, and personalized content recommendations are all being scrutinized as potential mechanisms for fostering addictive behavior. The plaintiffs argue that these features exploit psychological vulnerabilities, particularly in young users, leading to compulsive use and negative consequences.

Mosseri’s testimony highlights the difficulty in defining and proving “social media addiction” as a clinical condition. While researchers have documented the potential harms of excessive social media use, including increased rates of anxiety, depression, and body image issues, the medical community has not yet established a formal diagnostic criteria for social media addiction. This lack of a clear medical definition presents a significant challenge for the plaintiffs in proving their claims.

The outcome of this trial could have far-reaching implications for the social media industry. If the plaintiffs are successful, it could open the door to increased regulation of social media platforms and potentially lead to significant financial liabilities for the companies involved. It could also force these companies to re-evaluate their design choices and prioritize user well-being over engagement metrics. However, a defense victory could reinforce the industry’s position that it is not responsible for the mental health consequences of users’ choices.

The case also raises broader questions about the responsibility of technology companies to protect their users, particularly vulnerable populations like children and adolescents. As social media platforms become increasingly integrated into daily life, the debate over their impact on mental health is likely to intensify, and the legal battles surrounding these issues are expected to continue.