Article continues below advertisementKim Kardashian has been singled out by health experts as one of the most problematic celebrities for dispensing wellness advice online, amid growing concern that influencer-driven guidance is undermining public trust in medicine and encouraging risky behavior.OK! can reveal 45-year-old reality TV veteran Kardashian's vast social media reach has repeatedly blurred the line between personal experience, promotion and medical recommendation, according to researchers who warn her health posts can carry seriously negative real-world consequences.