Evaluation of Dietary Assessment among the Publications related with Head and Neck Carcinoma: Bibliometric Analysis

Background: Dietary changes and habits influence risk and prognosis of head and neck cancer (HNC). Diet assessment is part of cancer management; however, related research remain poorly understood. This bibliometric study aimed to evaluate publication trends, key contributors, and thematic focus of diet assessment in HNC. Methodology: Scopus database was searched systematically using keywords related to HNC and dietary assessment tools in title, abstract, and keywords of relevant articles. Only peer-reviewed original studies were included; grey literature and unrelated articles were excluded. Data were analysed using Bibliometrix (RStudio) and VOSviewer to explore publication trends, research focus, co-authorship networks, top countries, institutions, authors journals, and emerging keywords. Results: From 1975 to 2025, 587 documents from 257 journals were retrieved. Research output increased after 2000, peaking in 2021. Nutrients, Head and Neck, and Supportive Care in Cancer were major publishing venues. USA, Italy, and China led in publication output. Conclusion: Diet assessment in HNC is on emphasis in recent decades. Research evolved from identifying risk factors to clinical oncology. Despite its high disease burden, India lags in publication output. More collaboration is required between different income-level countries for creating culturally and regionally adapted diet assessments. Research remains scarce on emerging lifestyle risks.