Compared to women with non-deficient levels of 25(OH)D (≥50 nmol/L) and normal PTH levels (≤6.89 pmol/L), women with either deficient 25(OH)D levels (<50 nmol/L) or PTH excess (>6.89 pmol/L) had higher BMI, lower physical activity, and higher fasting glucose and insulin and prevalence of diabetes, obesity, and hypertension among both white and black women. This evidence concerns the gene PTH and diabetes mellitus.