Kitchen cures? study tests bitter melon, berries for diabetes control

NCT ID NCT07233460

Completed Disease control Sponsor: Hatice Demirağ, Ph.D Source: ClinicalTrials.gov ↗

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 2 times

Summary

This study tested whether taking bitter melon, blueberry, or cranberry powder for 12 weeks could improve blood sugar control and reduce symptoms in people with type 2 diabetes. 120 adults on oral diabetes medication were randomly assigned to one of the three supplements. Researchers measured HbA1c (a long-term blood sugar marker) and diabetes symptoms before and after the treatment period.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: bitter melon, blueberry, and cranberry powder extracts
What this could lead to: If effective, these natural supplements could offer a simple, low-cost way to help manage blood sugar and diabetes symptoms alongside standard medication.
What could go wrong: This is a small, completed trial with only 120 participants. The supplements are not a replacement for diabetes medication, and results may not apply to everyone. Dietary supplements can also interact with other drugs.

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Conditions

The condition(s) this trial relates to.

Signs and Symptoms type 2 diabetes mellitus

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

PATIENT SYMPTOMS AND SIGNS TYPE 2 DIABETES MELLITUS

Contacts and locations

Locations

Gümüşhane University

Gümüşhane, 29600, Turkey (Türkiye)

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