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The proposed study aims to test the effects of supplementing healthy individuals (with low baseline vegetable consumption) with 5 servings of vegetables (80-120g per serving) per day for 4 weeks on blood lipids and other cardiometabolic outcomes. Previous studies indicate the potential to see significant effects in this population and within this amount of time. Importantly, the investigators will also be including a weekly cooking demonstration as part of the intervention, which provides an essential hands-on participatory component and allows participants to connect with one another in a group setting, which aids in acceptability and adherence to dietary interventions. The investigators hypothesize that 4 weeks of daily supplementation with 4-5 servings of vegetables will significantly improve LDL-C and other cardiometabolic outcomes in healthy adults.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Vegetables | Experimental | 4-5 servings of vegetables daily, per USDA definition. |
|
| Normal diet | No Intervention | Participant maintains normal diet, no intervention |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Vegetables | Dietary Supplement | 4-5 servings of vegetables daily, per USDA guidelines. |
|
| Measure | Description | Time Frame |
|---|---|---|
| LDL-C/non-HDL-C | 4-6 weeks | |
| Brachial and central blood pressure | systolic and diastolic pressures | 4-6 weeks |
| Measure | Description | Time Frame |
|---|---|---|
| Augmentation Index | augmentation index corrected for heart rate augmentation index corrected for heart rate | 4-6 weeks |
| Other lipids and lipoproteins | HDL-C, total cholesterol, and triglycerides |
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Inclusion criteria:
Exclusion criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Ann Skulas-Ray, PhD | University of Arizona | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University of Arizona | Tucson | Arizona | 85721 | United States |
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| ID | Term |
|---|---|
| D001519 | Behavior |
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| ID | Term |
|---|---|
| D014675 | Vegetables |
| ID | Term |
|---|---|
| D005502 | Food |
| D000066888 | Diet, Food, and Nutrition |
| D010829 | Physiological Phenomena |
| D019602 | Food and Beverages |
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| 4-6 weeks |
| Glucose | Fasting blood glucose | 4-6 weeks |