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This study will examine the effects of a dietary fiber on insulin sensitivity in overweight and obese women. The fiber will be added to snack foods and women will consume the foods for four weeks. In one four-week period, 15 g of fiber will be added, and 30 g will added in another period. In a third period, no fiber will be added to the snack foods. Insulin senstivity will be measured at the end of each treatment period.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Low dose | Experimental | 15 g of fiber per day will be added to snack foods |
|
| High dose | Experimental | 30 g of fiber per day will be added to snack foods |
|
| No fiber | Placebo Comparator | Snack foods without fiber will be given |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Dietary Fiber | Dietary Supplement | Dietary fiber will be added to snack foods |
|
| Measure | Description | Time Frame |
|---|---|---|
| Insulin sensitivity | A frequently sampled intravenous blood glucose tolerance test will be performed. | 5-hr test, performed 3 times within a 20-week period |
| Measure | Description | Time Frame |
|---|---|---|
| Mitocondrial function | A muscle biospy will be taken to assess mitochondrial function | 3 times, with a 20-week period |
| Meal tolerance test | A high-fat meal will be given and blood will be drawn over a three-hr period |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Brandon Kane | Contact | 205-975-9629 | kane003@uab.edu |
| Name | Affiliation | Role |
|---|---|---|
| Barbara Gower, PhD | University of Alabama at Birmingham | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Clinical Research Unit | Birmingham | Alabama | 35249 | United States |
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| Label | URL |
|---|---|
| clinical center | View source |
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| Type | Date | Date Unknown |
|---|---|---|
| Release | Apr 20, 2016 | |
| Reset | May 26, 2016 | |
| Release | Feb 10, 2020 | |
| Reset | Feb 20, 2020 |
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| Release Date | Unrelease Date | Unrelease Date Unknown | Reset Date | MCP Release Number |
|---|---|---|---|---|
| Apr 20, 2016 | May 26, 2016 | |||
| Feb 10, 2020 |
| ID | Term |
|---|---|
| D007333 | Insulin Resistance |
| ID | Term |
|---|---|
| D006946 | Hyperinsulinism |
| D044882 | Glucose Metabolism Disorders |
| D008659 | Metabolic Diseases |
| D009750 | Nutritional and Metabolic Diseases |
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| ID | Term |
|---|---|
| D004043 | Dietary Fiber |
| ID | Term |
|---|---|
| D004040 | Dietary Carbohydrates |
| D002241 | Carbohydrates |
| D005502 | Food |
| D000066888 | Diet, Food, and Nutrition |
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| 3 times, within a 20-week period |
| Feb 20, 2020 |
| D010829 |
| Physiological Phenomena |
| D019602 | Food and Beverages |