Milk mystery: could Whole-Fat dairy help or hurt your heart?
NCT ID NCT07401888
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at how drinking whole-fat milk changes heart disease risk factors in adults with metabolic syndrome. Researchers will measure cholesterol, blood sugar, and blood vessel function in 40 participants. The goal is to see if whole-fat dairy is helpful or harmful for people at higher risk of heart problems.
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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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Apr 2026
- Expected to finish
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Feb 2028
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 70 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: Presence of 3 of the following risk factors: 1. fasting plasma glucose ≥100 mg/dL (or medical therapy for elevated glucose) 2. HDL-C \<40 mg/dL in men or \<50 mg/dL in women (or medical therapy for reduced HDL-C) 3. Triglycerides ≥150 mg/dL (or medical therapy for elevated triglycerides) 4. Waist circumference \>102 cm for men and \>88 cm for women 5. Systolic blood pressure ≥130 mmHg or diastolic blood pressure ≥80 mmHg (or medical therapy for hypertension) Exclusion Criteria: 1. Cardiovascular disease diagnosis 2. Type 1 or 2 diabetes diagnosis 3. Dairy allergy or lactose intolerance 4. Self-reported high baseline dairy intake (\>3 servings per day) 5. \>3 hours of physical activity per week 6. Pregnant women 7. Inflammatory bowel disease 8. Chronic steroid use 9. Allergy to metal 10. GLP-1 agonist use 11. Patients on medications related to metabolic syndrome where dose adjustments are planned to be made during the study period.
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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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Mayo Clinic in Rochester
RECRUITINGRochester, Minnesota, 55905, United States
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