Effects of Peanut and Peanut Butter Consumption on Blood Lipids and Glycemic Control in Adults With Type 2 Diabetes
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|ClinicalTrials.gov Identifier: NCT00937222|
Recruitment Status : Completed
First Posted : July 10, 2009
Last Update Posted : June 20, 2012
|Condition or disease||Intervention/treatment|
|Type 2 Diabetes||Dietary Supplement: Peanuts and peanut butter|
This will be a parallel randomized controlled intervention study on free-living adults with diabetes. The study duration will be 6 months. Participants will be randomized to receive one of two dietary approaches (moderate fat, control; and, moderate fat inclusive of 32 g peanuts or 2 Tbsp. peanut butter per day, intervention) to an ADA meal plan targeting a profile of 35% fat, 45% CHO and 20% protein. A supply of peanuts and peanut butter from the National Peanut Board will be provided to participants assigned to the intervention group at clinic visits. The peanuts and peanut butter will be consumed as part of the participant's customary meals and snacks. In light of ADA's prior recommendation to derive 60 to 70% of energy intake from CHO and MUFA, the peanuts and peanut butter will provide an enhanced proportion of energy from MUFA (total fat content of peanuts by compositional weight is 22% and 52% of the total fat is MUFA).
An experienced Registered Dietitian and Certified Diabetes Educator will oversee the dietary advice provided to each of the two groups. All participants will be provided with an individualized portion-controlled meal plan using the ADA food exchange lists and possibly modified fat instruction on fatty acid considerations and inclusion of peanuts and peanut butter. Dietary compliance, especially the intake of peanuts and peanut butter, will be measured by six 24-hour recalls without notice (telephone interview by a dietitian on what was consumed the previous day). Participants will be requested to maintain their activities and other lifestyle habits and to record in diaries provided to them any signs of illness, medications used, and any deviation from their prescribed diet. The investigators will examine diaries at the clinic visits. No major deviations from the protocol will be tolerated.
Less than 100 ml of blood will be drawn from each participant at baseline (week 0), week 12 and week 24. All blood drawings will be performed at Loma Linda University Medical Center. Participants will report to the laboratory on the assigned days after fasting for a minimum of 12 hours. Body weight and body composition measurements (percent body fat, fat free mass, total body water) will be obtained at each clinic visit using an internally calibrated segmental bioelectrical impedance analysis device (Tanita®, Arlington Heights, IL).
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||60 participants|
|Intervention Model:||Parallel Assignment|
|Masking:||Single (Outcomes Assessor)|
|Official Title:||Effects of Peanut and Peanut Butter Consumption on Blood Lipids and Glycemic Control in Adults Ith Type 2 Diabetes|
|Study Start Date :||June 2009|
|Primary Completion Date :||October 2011|
|Study Completion Date :||October 2011|
Dietary Supplement: Peanuts and peanut butter
- The primary outcome measure is HDL-C [ Time Frame: 12 weeks and 24 weeks ]
- Serum lipids, glucose, HbA1c, anthropometrics and blood pressure [ Time Frame: 12 weeks and 24 weeks ]
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00937222
|United States, California|
|Loma Linda University Medical Center Diabetes Treatment Center|
|Loma Linda, California, United States, 92350|
|Principal Investigator:||Joan Sabaté, MD, DrPh||Chair, Department of Nutrition|
|Study Director:||Michelle Wien, DrPH||Assistant Professor, Department of Nutrition|