Let Them Eat Beef: Effects of Beef Consumption on Markers of Metabolic Syndrome

<p>To determine the effects of a diet that provides 30% energy from protein with ½ as lean, red meat on risk factors of metabolic syndrome in humans. This pilot study was a 3- month, randomized, control, intervention trial with 33 participants (Beef-Intervention n=18; DASH-Control n=15) who displayed markers of metabolic syndrome. Registered Dietitians Nutritionists recruited and educated participants on Beef-Intervention Lean Beef Pattern, (30% of energy from protein with ½ as lean red meat, 40% carbohydrate, 30% fat) or DASH-Control dietary pattern, (15% of energy from protein, 55% carbohydrate and 30 % fat). Of the 33 participants who completed the study; 21 were female and 12 male. Bodyweight (BW), fasting serum lipoproteins [total cholesterol (TC), LDL-cholesterol (LDL-C), HDL-cholesterol (HDL-C), and triglycerides (TG)], hemoglobin A1C (HbA1C), dietary satisfaction, and general health status were assessed at baseline and post intervention. A three-day diet journal was collected to assess for calorie and macronutrient intake at baseline and post intervention. Repeated measures ANOVA was used to determine group differences from baseline to post-intervention. Variables were checked for normality and non-normal variables were transformed prior to analysis. Statistical significance was set at p ≤ 0.05. There were no significant changes in total cholesterol, LDL-C, and HDL-C. There was a significant time x group effect for TG (baseline to post; Beef-Intervention 207±88mg/dL to 148±53; DASH-Control, 200±88 to 193±96.) Both groups had decreased BW and HbA1c from baseline to post. Both groups reported a higher level of current dietary satisfaction, a higher level of general health, increased walking minutes & total increases in physical activity minutes. Lipid parameters, BW, and HbA1C of participants with metabolic syndrome randomized to the Beef-Intervention promoting 30% energy from protein with ½ as lean, red meat had outcomes that were similar or improved to those randomized to DASH-Control diet. The implication is, although larger studies in greater numbers still need to be done, that the inclusion of LRM in calorie-reduced diets may be used short term as an alternative to the DASH diet for those with MetS for weight and TG reduction.</p>

Name thesis:degree_name

Master of Science (MS)

Level thesis:degree_level

Thesis - Open Access

Discipline thesis:degree_discipline

Health and Nutritional Sciences

Year dc:date.available

2017

Author dc:creator

• Olson, Kristin L.

Contributors dc:contributor

• Kendra K. Kattelmann

• beef
• DASH
• metabolic syndrome
• Dietetics and Clinical Nutrition
• Nutrition

Licence

• http://rightsstatements.org/vocab/InC/1.0/

Language dc:language

en

Repository record dc:identifier

https://openprairie.sdstate.edu/etd/1124

OAI identifier oai:identifier

oai:openprairie.sdstate.edu:etd-2125