| OSCC | Oral squamous cell carcinoma |
| HDI | Human Development Index |
| FFQ | Food Frequency Questionnaire |
| PRISMA-ScR | Preferred Reporting Items for Systematic reviews and Meta-Analyses extension for Scoping Reviews |
| JBI | Joanna Briggs Institute |
| MeSH | Medical Subject Headings |
| DeCS | Descritores em Ciências da Saúde |
| Emtree | Embase Subject Headings |
| CAPES | 24 h dietary recall (R24H); Coordenação de Aperfeiçoamento de Pessoal de Nível Superior |
| PDPG | Postgraduate Development Program |