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Beef in an Optimal Lean Diet (BOLD) Effects on Established and Emerging Cardiovascular Disease (CVD) Risk Factors: Effects on Metabolic Syndrome

2014-08-27 03:20:52 | BioPortfolio

Summary

The proposed research will provide important information about the role of 2 intervention diets that provide different amounts of lean beef and meet current nutrient recommendations for the treatment of Metabolic Syndrome (MetSyn), a chronic disease that is still increasing in prevalence at alarming rates. The experimental and diet designs will enable us to evaluate lifestyle interventions for MetSyn for persons who maintain weight, lose weight and maintain their weight loss, as is currently recommended in clinical practice. Importantly, the investigators will compare a diet high in lean beef (5 oz/day) which is compositionally similar (i.e., energy and nutrients) to the modified-DASH diet, a low beef diet which has become the Gold Standard for the management of cardiovascular disease (CVD) risk factors, including MetSyn. In addition, the investigators also will evaluate a moderate-high protein diet (BOLD+) that is higher in total protein (from mixed sources including lean beef, 7oz/day) than the BOLD diet, on CVD risk factors in persons with MetSyn.

Hypotheses:

1. Healthful isocaloric diets that include lean beef as the primary source of protein (BOLD diet) with average (18%; BOLD) or moderate-high (28%; BOLD+) total protein intake will show similar or greater reductions in CVD risk, respectively when compared to a modified-DASH diet.

2. A healthful weight-loss diet, including lean beef as the primary source of protein in a high-moderate protein diet (BOLD+ diet), plus regular exercise (BOLD+ + ex) will reduce body weight equal to that of a BOLD + ex and DASH + ex intervention, but may improve CV risk factors (such as BP and TG), and therefore reduce the prevalence of MetSyn more than a BOLD + ex and DASH + ex intervention.

3. The BOLD diet will be more effective than the modified-DASH diet, and the BOLD+ diet more effective than the BOLD diet in maintaining the CVD benefits attained during phases 1 and 2. Dietary adherence will be better on the BOLD and BOLD + diets compared with the modified DASH diet.

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment

Conditions

Metabolic Syndrome

Intervention

BOLD Diet, BOLD-X Diet

Location

Penn State University
University Park
Pennsylvania
United States
16802

Status

Recruiting

Source

Penn State University

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:20:52-0400

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Medical and Biotech [MESH] Definitions

A diet that contains limited amounts of fat with less than 30% of calories from all fats and less than 10% from saturated fat. Such a diet is used in control of HYPERLIPIDEMIAS. (From Bondy et al, Metabolic Control and Disease, 8th ed, pp468-70; Dorland, 27th ed)

A diet that contains limited amounts of CARBOHYDRATES. This is in distinction to a regular DIET.

Regular course of eating and drinking adopted by a person or animal. This does not include DIET THERAPY, a specific diet prescribed in the treatment of a disease.

A diet which is devoid of GLUTENS from WHEAT; BARLEY; RYE; and other wheat-related varieties. The diet is designed to reduce exposure to those proteins in gluten that trigger INFLAMMATION of the small intestinal mucosa in patients with CELIAC DISEASE.

A course of food intake that is high in FATS and low in CARBOHYDRATES. This diet provides sufficient PROTEINS for growth but insufficient amount of carbohydrates for the energy needs of the body. A ketogenic diet generates 80-90% of caloric requirements from fats and the remainder from proteins.

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