The billionaire tech mogul's testimony was part of a landmark social media addiction trial in Los Angeles. The jury's verdict in the case could shape how some 1,600 other pending cases from families and school districts are resolved.

The outcome of the case could have far-reaching consequences for how courts assess tech companies’ responsibility for user well-being — and whether existing legal protections remain intact in an era of heightened scrutiny over youth mental health.

Mr Zuckerberg was questioned on his statements to Congress in 2024, at a hearing where he said the company did not give its teams the goal of maximising time spent on its apps.