NCT03478475

Vitamin D Supplementation and and Glycemic Indexes

Effect of Vitamin D Treatment on Glucose Homeostasis and Metabolism in Lebanese Older Adults: a Randomized Controlled Trial

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 115 (actual)
• Sponsor: Université d'Auvergne · Academic / Other
• Sex: All
• Age: 65 Years
• Healthy volunteers: Accepted

Summary

Age affect insulin sensitivity and the metabolism, and vitamin D status was shown to have a correlation with markers of insulin resistance. That's why, we aimed in our trial to study the effect of vitamin D supplementation on glycemic markers and index of insulin resistance.

Detailed description

A low serum 25-hydroxyvitamin D \[(25(OH) D)\] concentration was shown to correlate with higher fasting blood glucose (FBG) and insulin levels. Since age affect insulin sensitivity and the metabolism, we aimed in this randomized controlled trial to investigate the effect of vitamin D supplementation on glucose homeostasis and index of insulin resistance in elderly subjects living in Beirut, Lebanon. Participants (n= 115) deficient in vitamin D were randomly divided into two groups, a group receiving 30,000 IU cholecalciferol/week for a period of 6 months, and a placebo group. The index of insulin resistance HOMA (homeostasis model assessment) was the primary outcome. Glucose homeostasis and metabolic markers were also measured at start of treatment and at 6 months.

Conditions

• Deficiency, Vitamin D
• Insulin Resistance

Interventions

Type	Name	Description
DIETARY_SUPPLEMENT	cholecalciferol (Euro-Pharm International, Canada)
OTHER	Placebo	Placebo pill (microcrystalline cellulose 66.3%, starch 33.2%, magnesium stearate 0.5%)

Timeline

• Start date: 2015-07-02
• Primary completion: 2015-09-19
• Completion: 2015-09-19
• First posted: 2018-03-27
• Last updated: 2018-03-29