Can a mediterranean diet help overweight Moms-to-Be eat healthier?
NCT ID NCT05868954
First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This pilot study compared two healthy eating plans for overweight or obese pregnant women in a low-resource clinic. Forty-one women were randomly assigned to either standard healthy diet advice or a Mediterranean diet program that included free meals, olive oil, and nuts. Researchers measured how well women stuck to their assigned diet and tracked weight gain during pregnancy. The goal was to see if the Mediterranean approach is practical and effective in this setting.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Mediterranean diet program (behavioral intervention with free meals, olive oil, and nuts)
- What this could lead to
- If successful, this could show that a Mediterranean diet program is feasible and helps overweight pregnant women control weight gain and improve diet quality.
- What could go wrong
- This is a small pilot study with only 41 participants, so results may not apply widely. The diet program requires significant support (free food, counseling) that may not be available in all low-resource settings.
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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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41 people
The number who actually took part.
- Started
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Aug 2023
- Finished
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Jul 2025
- 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 years and older
- Sex
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Female participants only
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
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: * Viable singleton pregnancy in the first trimester (6 0/7- 16 6/7 weeks); includes twins reduced to singleton spontaneously or vanishing twin syndrome * BMI ≥ 25.0 kg/m2; calculated by dividing maternal weight in kilograms by height in meters squared using a calibrated scale and standard metric measure * Confirmed intrauterine pregnancy by ultrasound exam (6-16 weeks) * Age 18 years or older * Primary language of English or Spanish Exclusion Criteria: * BMI \< 25.0 kg/m2 * Known pre-pregnancy diabetes * Hemoglobin glycosylated (A1C) \> 5.7% at first prenatal visit * Pre-pregnancy hypertensive disease * Non-viable pregnancy * Known allergies to an essential component(s) of MedDiet * Inability to read or write in primary language * Mental incapacity to make medical decisions
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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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Atrium Health Myers Park OB/GYN
Charlotte, North Carolina, 28207, United States
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