In an era of information overload, patients and clinicians alike are inundated with health claims, miracle cures, and persuasive pseudoscience. This chapter equips primary care clinicians with practical tools to think critically, evaluate evidence, and guide patients through the noise. Drawing on real-world examples and cognitive science, it explores common reasoning errors, the allure of marketing over medicine, and the skills needed to assess interventions—whether pharmaceutical, lifestyle-based, or alternative. With a focus on curiosity, humility, and patient-centred dialogue, this chapter helps clinicians become more thoughtful interpreters of evidence and more trusted guides in a confusing health landscape.