TikTok's Most Dangerous Challenge Yet

The video has all the emblems of someone sharing their recipe for a nutritious smoothie: ingredients laid out on the counter, captions touting their health benefits. But Leah Anduiza, who posts on TikTok as @thetruthaboutparasites, is not telling her 47,000 followers to add a little spinach to a fruit smoothie for an extra boost of iron. Instead, she’s making a solution of borax and water, a concoction she says she drinks daily with her morning coffee.