Association between vitamin D deficiency and type 2 diabetes in an Indigenous Brazilian population
Abstract
OBJECTIVE: This study investigated the association between vitamin D levels and type 2 diabetes mellitus (T2DM) among Indigenous adults of the Tupiniquim and Guarani ethnicities residing on a reserve on the southeastern Brazilian coast. SUBJECTS AND METHODS: This cross-sectional study, conducted between 2020 and 2022, included 946 Indigenous individuals (aged ≥20 years, both sexes) from the Tupiniquim and Guarani ethnic groups. T2DM was defined by a self-reported diabetes diagnosis, the use of glucose-lowering medications, or, in the absence of such reports, a fasting plasma glucose level ≥126 mg/dL, a 2-hour plasma glucose level ≥200 mg/dL following an oral glucose tolerance test, or a glycated hemoglobin level ≥6.5%. Hypovitaminosis D was defined as a serum 25-hydroxyvitamin D [25(OH)D] level
Fields of Study & Subjects
Vitamin D Research Studies
Indigenous Health and Education
Indigenous Studies and Ecology
Publication details
- Journal / source
- Archives of Endocrinology and Metabolism
- Publisher
- Archives of Endocrinology and Metabolism
- Volume
- 70
- Issue
- 5
- Pages
- 1–9
- Publication date
- 1 January 2026
- Language
- EN