From 28 March, accounts belonging to under-16s on platforms including TikTok, Facebook, Instagram, Roblox, YouTube and X will be gradually deactivated.
University of Cambridge researchers found that after stopping the jabs for 52 weeks, people had regained 60% of the weight they lost and could "be worse off than before" they started.
"I think it takes courage to be the first company to go out there and say, 'You know what? We're not going to tolerate this,'" Dr Peter Membrey told Sky News.
Artificial intelligence can parse vast amounts of data and use it to flag targets, rank threats and suggest priorities. But experts are worried human oversight could be eroded to a dangerous form of "rubber stamping".
The government is describing this as the "world's most ambitious consultation" and its results could bring about the biggest change to social media since Myspace went mainstream in the early noughties.
The origin of the dispute between the White House and Anthropic is the tech company's insistence on "red lines" in relation to the use of AI for military purposes.
The review found collagen supplements taken over a long period could improve skin elasticity and hydration, and reduce the symptoms of arthritis. However, they did not significantly affect skin roughness.
Researchers pitted three leading AI models against each other in a series of wargames where they assumed the roles of fictional nuclear-armed superpowers.