Could vitamin d and calcium help control gestational diabetes?
NCT ID NCT06896669
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This completed trial tested whether taking vitamin D and calcium supplements for six weeks could improve blood sugar and cholesterol levels in 60 pregnant women diagnosed with gestational diabetes. The study measured fasting blood sugar, HbA1c, and lipid profiles to see if the supplements helped. Results may point to a simple dietary approach to support standard treatment.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- vitamin D3 and calcium
- What this could lead to
- If it works, this could point toward a simple, low-cost way to help manage blood sugar and cholesterol in women with gestational diabetes.
- What could go wrong
- This is a small, completed trial with only 60 participants, so results may not apply to all women. Supplements alone are unlikely to replace standard medical care.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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60 people
The number who actually took part.
- Started
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Jan 2025
- Finished
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Mar 2026
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 40 years
- Sex
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Female participants only
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Pregnant women aged 18-40 years. * Gestational age between 24-28 weeks. * Diagnosis of GDM based on OGTT results. * Willingness of participants to provide written informed consent. Exclusion Criteria: * Pre-existing diabetes mellitus (type 1 or type 2). * Chronic kidney or liver disease. * Use of vitamin D or calcium supplements in the last 3 months. * Multiple pregnancies (twins, triplets). * Any major pregnancy complications (e.g., preeclampsia).
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Riphah International University
Lahore, Punjab Province, 54000, Pakistan