About this trial
In a randomized controlled trial, the investigators intend to measure the health impact of time restricted eating (TRE) in patients with metabolic syndrome (with elevated blood pressure and at least 2 of the following: increased waist circumference, abnormal cholesterol levels, elevated triglycerides, and elevated fasting glucose levels), who habitually eat more than 12 hours every day. Patients will be randomly assigned to a control group (standard of care) or intervention group (TRE).
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Age: 18-75 years
HbA1c: 5.7% to 7.0%
Elevated systolic blood pressure ≥ 130 mm Hg or diastolic blood pressure ≥ 85 mm Hg OR an antihypertensive therapy)
Fasting plasma triglycerides ≥ 150 mg/dL, or on drug treatment for elevated triglycerides d) Reduced High-density lipoprotein (HDL)- cholesterol < 40 mg/dL in males or < 50 mg//dL in females, or drug treatment for reduced HDL-cholesterol e) Fasting glucose ≥ 100 mg/dL
Disqualifiers
Use of sulfonylurea or insulin.
HbA1C > 7.0%
Pregnant or breastfeeding. Anyone of reproductive age will receive pregnancy test prior to DXA scan.
Caregiver for a dependent requiring frequent nocturnal care / sleep interruptions.
Trial design
Parallel
Treatments tested in this trial
Time-restricted eating (TRE) + Standard of Care
BehavioralParticipants in this arm will adhere to a daily, consistent 10-hour eating window for the course of the study as well as receive nutritional counseling from the study dietician.
Standard of Care
BehavioralParticipants in this arm will receive nutritional counseling from the study dietician, but will not be required to adopt the 10-hour eating window.
Treatment groups
Trial outcomes
Primary outcomes
Change in Glucose Levels
Assessed via HbA1c (%)
Secondary outcomes
Change in glycemic variability
Measured by continuous glucose monitor (CGM)
Change in direct LDL-C
LDL cholesterol (mg/dl)
Change in bone density
Bone density measured by DEXA scan (g/cm\^2)
Change in insulin sensitivity
Measured by oral glucose tolerance test (OGTT)
Sponsors and contacts
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University of California, San Diego
Lead sponsor
Salk Institute for Biological Studies
Collaborator