Digital innovations have created many opportunities as well as challenges for the public. Digital transformations, coupled with free access to open data, social media, and AI, have led to a significant rise in misinformation online. Health misinformation has become a global challenge to public health outcomes and health decisions. Various literacy interventions have been proposed to mitigate this challenge. This scoping review followed the Systematic Reviews and Meta-Analyses Extension for Scoping Reviews (PRISMA-ScR) process, and articles were extracted from the Scopus, Web of Science, EBSCOhost, ProQuest, and ACM Digital Library databases. This scoping review presents a summary the fragmented insights on different literacies related to health misinformation such as health, media, digital, social media, scientific, and AI. Then it explores how each separate literacy, and various combinations work in combating health misinformation on social media, particularly in the context of digital diffusion. Although different literacies play different roles in overcoming health misinformation on social media, the study identified that multiliteracy interventions are more effective in overcoming this challenge while promoting digital health adoption. Finally, the limitations and future research are presented. Recommendations include cross-sector collaborations, personalised multiliteracy interventions, and practical strategies to overcome the digital divide. This review contributes to a deeper understanding of different literacies related to health misinformation. It offers actionable insights to academics, policymakers, and industry in developing comprehensive and interdisciplinary strategies to enhance literacy in digital health adoption.