Association between triglyceride-glucose index and vitamin D levels in Saudi postmenopausal women: a cross-sectional study

The study identifies a significant inverse association between TGI and vitamin D levels, underscoring the metabolic interrelationship between insulin resistance and vitamin D deficiency in postmenopausal Saudi women. Public health strategies targeting both conditions may mitigate metabolic and cardiovascular risks in this vulnerable population. Further longitudinal and interventional research is warranted to confirm causality and evaluate the benefits of vitamin D supplementation.