Can black seed capsules tame borderline high blood pressure in women?
NCT ID NCT07494279
First seen Mar 27, 2026 · Last updated Jun 22, 2026 · Updated 16 times
Summary
This study tests whether a daily black seed extract supplement (Nisatol®) can help lower blood pressure in women with borderline high readings or a specific nighttime blood pressure pattern. 106 women will take either the supplement or a placebo for 12 weeks. Researchers will measure changes in blood pressure and heart rate to see if the supplement offers a natural way to manage early hypertension.
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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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Contacts and locations
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Locations
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University of Rome Tor Vergata
Roma, Italy
Contact Email: •••••@•••••
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
Nigella sativa (black seed) extract, standardized as Nisatol®
What this could lead to
If it works, this could point toward a natural supplement option for managing borderline high blood pressure in women without needing prescription drugs.
What could go wrong
This is a small, early-stage trial with only 106 women, so results may not apply to everyone. Supplements can have variable effects and may not lower blood pressure enough to be clinically meaningful.
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.