Up to 24 million people could face serious health consequences from following extreme diet advice on social media, according to new research exposing a wave of influential accounts peddling misinformation for profit.A joint analysis by the Rooted Research Collective (RRC) and the Freedom Food Alliance (FFA) has identified 53 high-profile “super-spreaders” on Instagram who routinely share what they deem harmful nutrition guidance. Most have no health-related qualifications, yet their posts directly contradict global public health advice.