Cheese lovers rejoice: hay-aged cheddar may slash cholesterol!
NCT ID NCT07351175
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether eating a hay-aged cheese every day for 12 weeks can lower cholesterol in people with mildly high levels. Forty adults will eat either the special cheese or regular cheddar. Researchers will check blood, stool, and urine to see if changes in gut bacteria help reduce cholesterol.
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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 40 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jan 2026
- Expected to finish
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Jan 2027
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 65 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.
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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 aged 18 to 65 years old * Regular consumer of cheese * In generally good health but with total cholesterol level between 5.5-7.5 mmol/l and body mass index (BMI) between 18-32 kg/m2 at screening visit * Willing and able to comply with study instructions Exclusion Criteria: * Use of antibiotics in the last 6 months prior to the study. * Use of prebiotics, probiotics, laxatives, anti-spasmodic, anti-diarrhoeals, herb supplements in the last 4 weeks prior to or during the study period. * Any chronic gut disorders/disease such as irritable bowel syndrome, inflammatory bowel disease, etc or other conditions that might affect the gut environment e.g. coeliac disease. * High blood pressure, anaemia, high blood lipids (total cholesterol \>7.5mmol/l), or inflammatory conditions * Taking medication for anaemia, high blood pressure, high blood lipids , inflammatory conditions or depression * Anyone diagnosed with vitamin deficiencies, diabetes, heart disease (previous stroke or heart attack) or have a pacemaker, kidney, bowel or liver diseases, cancer or hormone abnormalities. * Pregnant, lactating, breast feeding or planning a pregnancy within the next 6 months * Peri- or postmenopausal women * Lost more than 3kg of body weight in the last 6 months * Food allergies and intolerances * Participants currently involved or will be involved in another clinical or food study in the previous 3 months
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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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University of Reading, Department of Food and Nutritional Sciences
RECRUITINGReading, RG6 6UR, United Kingdom
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