Blood donation may improve diabetes and fatty liver, study finds
NCT ID NCT03696797
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tested whether regularly removing blood (like donating blood) can lower iron levels and improve diabetes control and fatty liver disease. 132 adults aged 40-75 with prediabetes or diabetes took part. The treatment group gave blood several times, while the control group did not. Researchers measured blood sugar, liver enzymes, and insulin function over 6 to 12 months.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
blood donation (phlebotomy)
What this could lead to
If it works, this could offer a simple, low-cost way to improve blood sugar control and liver health in people with diabetes and fatty liver disease.
What could go wrong
This is a completed trial with 132 participants, so results are limited. The intervention (blood donation) may not be effective for everyone, and risks include anemia or dehydration from blood draws.
Disclaimer
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the original study
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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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
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Locations
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University of North Carolina at Chapel Hill (UNC)
Chapel Hill, North Carolina, 27599-2100, United States
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Wake Forest University Health Sciences
Winston-Salem, North Carolina, 27157, United States