Could rosemary tea lower blood pressure and fats? new study tests it
NCT ID NCT07352124
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tested whether drinking rosemary infusion daily for 6 weeks could help people with mild high blood pressure and high triglycerides. 47 adults took part, and researchers measured blood pressure and blood fats before and after. The goal was to see if this simple herbal drink might offer heart health benefits.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- rosemary infusion
- What this could lead to
- If it works, this could point toward a natural dietary supplement to help manage mild hypertension and high triglycerides.
- What could go wrong
- This is a small, early-stage study with only 47 participants and no placebo group. Results may not apply to everyone, and the effects might be modest or not clinically meaningful.
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
-
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
-
47 people
The number who actually took part.
- Started
-
Sep 2024
- Finished
-
Apr 2025
- Lead sponsor
-
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
-
18 to 70 years
- Sex
-
Anyone
- Healthy volunteers
-
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: Participants of both sexes, aged 18 years and older, were included in the study. The inclusion criteria were: (1) Presence of mild hypertension defined as systolic blood pressure (SBP) of 140-159 mmHg and/or diastolic blood pressure (DBP) of 90-99 mmHg according to the 2018 ESC/ESH guidelines(Williams et al., 2018); (2) No use of medications or dietary supplements for other health conditions. Exclusion Criteria: Participants were excluded if they had renal failure, autoimmune diseases, major gastrointestinal disorders, or a history of cardiovascular disease. Other exclusion criteria included current or past use of medications known or suspected to influence blood pressure or metabolic parameters
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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
-
Sassi
Sousse, 4023, Tunisia
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Other studies related to the condition(s) this trial covers.
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