Yerba mate study hopes to brew better cholesterol numbers
NCT ID NCT06896175
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at whether the time of year yerba mate is harvested and how people drink it (as hot mate, cold tereré, or both) can improve cholesterol and fat levels in the blood. About 198 regular yerba mate drinkers in Paraguay will be assigned to different groups and have their cholesterol checked over 6 months. The goal is to see if these factors can help manage lipid disorders.
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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 198 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Feb 2026
- Expected to finish
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Oct 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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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Individuals of both sexes, between 18 and 60 years of age, residing in the country, who consume prepared yerba mate. 2. Consumers of mate or tereré and mate/terere who agree to consume the yerba mate samples provided by the research team, which will be masked from laboratory analysis. 3. Two weeks of abstinence from consuming prepared yerba mate, either as mate or tereré, prior to randomization for the trial. 4. Consume exclusively prepared yerba mate in the prescribed manner (quantity of yerba, frequency of consumption, and sips), either in its mate or tereré form independently, and for those who consume both forms daily. 5. Do not change the yerba mate consumer's usual diet or regular physical activity during the trial period. 6. Agree to know the laboratory results of the lipid profile only at the end of the trial (180 days after the start). Exclusion Criteria: 1. Individuals receiving lipid-lowering treatment at the start of the trial. 2. Consuming any other type of yerba mate not provided by the principal investigator. 3. Individuals requiring vitamins as a nutritional supplement. 4. Individuals taking thermogenic supplements. 5. Individuals consuming cooked mate. 6. Addiction to medicinal plants or herbs, both mate and tereré. 7. Individuals with a personal history of coronary artery disease.
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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UNCA
RECRUITINGCoronel Oviedo, Paraguay
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