Can apple cider vinegar help tame diabetes? small trial puts it to the test
NCT ID NCT07493707
First seen Jun 25, 2026 · Last updated Aug 11, 2026 · Updated 3 times
Summary
This study tests whether drinking 15 ml of apple cider vinegar twice a day for two weeks can improve blood sugar stability and cholesterol in adults with type 2 diabetes. Thirty-eight participants will compare the vinegar to plain water using a continuous glucose monitor. It's a small, early-stage trial, so results will be preliminary.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- apple cider vinegar
- What this could lead to
- If it works, this could point toward a simple, low-cost dietary supplement to help manage blood sugar and cholesterol in type 2 diabetes.
- What could go wrong
- This is a very small, short-term trial (38 people, 2 weeks per phase). Results may not apply to everyone, and apple cider vinegar can cause digestive issues or interact with medications.
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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About 38 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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May 2024
- Expected to finish
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Dec 2026
An estimate. End dates often move.
- 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 60 years
- Sex
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Anyone
- 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.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Men and women * Diagnosis of type 2 diabetes mellitus * Age between 18 and 60 years * Glycated hemoglobin (HbA1c) ≤ 8% * Participant's ability to attend medical appointments, answer questionnaires, and undergo laboratory tests. * Participant's ability to wear a Freestyle® device. * Participant's acceptance and signature of informed consent. * Acceptance of the intervention (consumption of 30 ml of apple cider vinegar) and avoidance of vinegar-based dressings for the entire duration of the intervention. * Consent to participate in the study. Exclusion Criteria: * Other types of diabetes * Chronic kidney disease (eGFR \< 60 ml/min) * Allergy to apple cider vinegar * Use of systemic steroids at supraphysiological doses * Gastroesophageal reflux disease * Peptic ulcer disease * Documented gastroparesis * Pregnancy or lactation * Use of rapid-acting prandial insulin or analogs
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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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Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán
Mexico City, 14080, Mexico