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The effect of magnesium and vitamin D supplementation alone and combination on glycemic indices in patients with type 2 diabetes

The effect of magnesium and vitamin D supplementation alone and combination on glycemic indices, serum level of CRP and vitamin D in patients with type 2 diabetes: A randomized double-blind clinical trial

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
IRCT
Registry ID
IRCT20250820066931N1
Enrollment
72
Registered
2025-12-28
Start date
2026-04-21
Completion date
Unknown
Last updated
2026-06-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Type 2 Diabetes.

Interventions

Intervention 1: First intervention group: Daily intake of 2000 units of vitamin D and one placebo magnesium tablet. Intervention 2: Second intervention group: Daily administration of 1 250 mg magnesiu

Sponsors

Kermanshah University of Medical Sciences
Lead Sponsor

Eligibility

Sex/Gender
All
Age
30 Years to 70 Years

Inclusion criteria

Inclusion criteria: Participants must be between 30 and 70 years old have a diagnosis of diabetes based on the criteria of the American Diabetes Association (HbA1C greater than 6.5 or FBS greater than 126 or OGTT greater than 200) confirmed by tests and an endocrinologist, be taking oral antidiabetic medications.

Exclusion criteria

Exclusion criteria: Use of insulin use of vitamin D supplements within three months before the start of the intervention, use of calcium supplements and magnesium supplements use of calcium and magnesium channel blocking drugs, use of diuretic drugs, use of drugs that interfere with vitamin D, including: corticosteroids, antiepileptic drugs and contraceptives patients with reduced kidney function (serum creatinine level more than 1.3 mg/dL in women and more than 1.5 mg/dL in men) increased liver enzymes (more than three times higher than normal values) kidney failure, chronic kidney disease ,Cushing's syndrome , kidney stones acute liver disease HIV and tuberculosis chronic obstructive pulmonary disease organ transplant bone disease autoimmune disease chronic inflammatory disease (inflammatory bowel disease, psoriasis, chronic asthma) hypercalcemia Cancers cardiovascular disease history of cerebrovascular disease or stroke in the past years severe anemia requiring blood transfusion uncontrolled blood pressure psychiatric disorder, dementia pregnancy or breastfeeding history of bariatric surgery use of tanning devices before the study.

Design outcomes

Primary

MeasureTime frame
FBS. Timepoint: Day 0 and 56 days after supplementation. Method of measurement: Blood test.;HbA1C. Timepoint: Day 0 and 56 days after supplementation. Method of measurement: Blood test.;Serum vitamin D. Timepoint: Day 0 and 56 days after supplementation. Method of measurement: Blood test.

Secondary

MeasureTime frame
CRP. Timepoint: Day 0 and 56 days after supplementation. Method of measurement: Blood test.;LDL. Timepoint: Day 0 and 56 days after supplementation. Method of measurement: Blood test.;TG. Timepoint: Day 0 and 56 days after supplementation. Method of measurement: Blood test.;HDL. Timepoint: Day 0 and 56 days after supplementation. Method of measurement: Blood test.;Cholesterol. Timepoint: Day 0 and 56 days after supplementation. Method of measurement: Blood test.;Weight. Timepoint: Day 0 and 56 days after supplementation. Method of measurement: Scales.;BMI. Timepoint: Day 0 and 56 days after supplementation. Method of measurement: weight divided by the square of hight.

Countries

Iran (Islamic Republic of)

Contacts

Public ContactDr Mostafa Nachvak

Kermanshah University of Medical Sciences

smnachvak@hotmail.com+98 83 3710 2013

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Jun 11, 2026