Vitamin D Supplementation and Glycemic Outcomes

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

180 participants

Study Classification

INTERVENTIONAL

Study Start Date

2013-02-28

Study Completion Date

2013-12-31

Brief Summary

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The investigators examined the effect of vitamin D supplementation on glucose homeostasis and metabolic markers in healthy normal weight and overweight young subjects and healthy normal-weight and overweight elderly subjects living in Beirut, Lebanon.

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Detailed Description

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A low serum 25-hydroxyvitamin D (25(OH)D) concentration has been shown to correlate with higher fasting blood glucose (FBG) and insulin levels and other metabolic abnormalities like dyslipidemia. Previous studies suggest that vitamin D supplementation is able to improve insulin sensitivity and metabolic markers. The aim of the study was to investigate the effect of vitamin D supplementation on glucose homeostasis and metabolic markers in healthy normal weight and overweight young subjects and healthy normal-weight and overweight elderly subjects living in Beirut, Lebanon. Participants (n= 180; 93 men and 87 women) deficient in vitamin D were recruited from Saint Charles Hospital, Beirut, Lebanon. Four groups were recruited: normal-weight adults (n=30, age ≤ 65 years and BMI \< 25 kg/m²), overweight adults (n=30, age ≤ 65 years and BMI ≥ 25 kg/m²), normal-weight elderly (n=60, age ≥ 65 years and BMI \< 25 kg/m²) and overweight elderly (n=60, age ≥ 65 years and BMI ≥ 25 kg/m²).

Participants received a supplement of 10,000 IU cholecalciferol to be taken three times per week for a period of 6 months. Glucose homeostasis and metabolic markers were measured at start of treatment, at 3 months and at 6 months.

Conditions

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Insulin Resistance

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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normal-weight adult subjects

normal-weight adult subjects (n=30, age ≤ 65 years and BMI ≤ 25 kg/m²) All assigned patients received a supplement of 10,000 IU cholecalciferol (Euro-Pharm International, Canada) to be taken three times per week. The treatment was led for a period of 6 months.

Group Type OTHER