COVID19

The investigators aim to determine the effect of the correction of vitamin D in vitamin D deficient patients (<15ng/ml) in oxidative stress and insulin resistance in patients with impaired glucose tolerance. Vitamin D deficiency has been associated with chronic low-grade inflammation, diabetes mellitus type 2, cardiovascular risk and increased prevalence of coronary heart disease, cerebrovascular disease and myocardial infarction.

Inclusion Criteria:

• Women, 18 to 70 years, glucose intolerance (post-2 hour 75-grams glucose load > or equal 140 mg/dl), 25-hydroxy vitamin D concentration < or equal 15 ng/ml

Exclusion Criteria:

• Diabetes, systemic inflammatory disorders, treatment with statins, metformin or fibrates, renal insufficiency, intestinal malabsorption