Cutting red meat from mediterranean diet may slash cholesterol
NCT ID NCT05778656
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested whether a Mediterranean diet that removes red and processed meat can lower LDL cholesterol and other heart disease risk factors. 157 adults with high cholesterol were assigned to either the special diet or standard heart-health advice for 8 weeks. Researchers measured changes in cholesterol, blood fats, and gut bacteria.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Mediterranean dietary pattern without red and processed meat
- What this could lead to
- If successful, this could show that cutting out red and processed meat while following a Mediterranean diet helps lower cholesterol and heart disease risk.
- What could go wrong
- This is a small, short-term study (8 weeks, 157 people) looking at biomarkers, not actual heart attacks or strokes. Results may not apply to everyone.
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
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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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157 people
The number who actually took part.
- Started
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Mar 2023
- Finished
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Aug 2025
- 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 75 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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: * Signed informed consent form. * Age ≥18 years to ≤75 years. * With indication to start lifestyle intervention based on recent values (e.g., last 3-6 months) of LDL-C ≥ 116 mg/dl and \< 190 mg/dl; or as long as pharmacological treatment has not been advised and started (ESC/EAS Guide, Rev Esp Cardiol. 2020). * Access to a device (e.g., smartphone, tablet, computer) with internet and digital skills to use the website. * Motivation and willingness to be assigned to any group to improve their diet and commitment to perform the designated protocol. Exclusion Criteria: * Patients with familial hypercholesterolemia and/or on treatment with lipid-lowering drugs (including statins, ezetimibe, PCSK9 inhibitors, fibrates, bile acid sequestrants, omega-3 fatty acids, nicotinic acid/Vit B3), dietary supplements or functional foods for the treatment of dyslipidemia (plant sterols, monacolin, red yeast rice, fiber supplements 3-10 g (Plantago), policosanol, berberine, and soy protein/lecithin) in the last 3 months. * High cardiovascular risk that requires pharmacological treatment, for example, patients with recent and/or established CVD, type 1 and 2 diabetes. * Uncompensated thyroid function disorders; relevant comorbidities (including liver failure and cholestasis, chronic kidney disease, Cushing's syndrome, nephrotic syndrome, class III obesity - BMI ≥ 40 kg/m²); cancer; psychiatric disorders and/or that in the opinion of the investigator hinder the fulfillment or follow-up of the study. * Excessive alcohol consumption: \> 40 g/d (4 UBEs/day) in men and \> 20-25 g/d (2-2.5 UBEs/day) in women (Ministry of Health, July 2020). * Pregnancy, lactation, perimenopause (amenorrhea \< 1 year) and women who change, start, or finish their treatment with hormonal contraceptives during the study. * Enrollment in other research studies or following restricted eating patterns (e.g., vegetarians and vegans) that could interfere with study requirements. * Failure to grant informed consent or not complete the initial assessment.
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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
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University of Granada
Granada, Granada, 18008, Spain
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