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Normal vs. high-protein weight loss diets in men: effects on body composition and indices of metabolic syndrome.
Obesity (Silver Spring). 2013 Mar; 21(3):E204-10.O

Abstract

OBJECTIVE

This study assessed the effectiveness of a prescribed weight-loss diet with 0.8 versus 1.4 g protein·kg(-1) day(-1) on changes in weight, body composition, indices of metabolic syndrome, and resting energy expenditure (REE) in overweight and obese men.

DESIGN AND METHODS

Men were randomized to groups that consumed diets containing 750 kcal day(-1) less than daily energy needs for weight maintenance with either normal protein (NP, n = 21) or higher protein (HP, n = 22) content for 12 weeks. The macronutrient distributions of the NP and HP diets were 25:60:15, and 25:50:25 percent energy from fat, carbohydrate, and protein, respectively. Assessments were made pre and post intervention. The subjects were retrospectively subgrouped into overweight and obese groups.

RESULTS AND CONCLUSION

Both diet groups lost comparable body weight and fat. The HP group lost less lean body mass than the NP group (-1.9 ± 0.3 vs. -3.0 ± 0.4 kg). The effects of protein and BMI status on lean body mass loss were additive. The reductions in total cholesterol, HDL-C, triacylglycerol, glucose, and insulin, along with LDL-C, total cholesterol-to-HDL-C ratio, and HOMA-IR, were not statistically different between NP and HP. Likewise, macronutrient distributions of the diet did not affect the reductions in REE, and blood pressure. In conclusion, energy restriction effectively improves multiple clinical indicators of cardiovascular health and glucose control, and consumption of a higher-protein diet and accomplishing weight loss when overweight versus obese help men preserve lean body mass over a short period of time.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Tang M
Department of Nutrition Science, Purdue University, West Lafayette, Indiana, USA.
Armstrong CL
No affiliation info available
Leidy HJ
No affiliation info available
Campbell WW
No affiliation info available

MeSH

AdultAgedBlood GlucoseBody CompositionBody Mass IndexBody WeightCholesterol, HDLCholesterol, LDLDiet, ReducingDietary CarbohydratesDietary FatsDietary ProteinsEnergy IntakeEnergy MetabolismHumansMaleMetabolic SyndromeMiddle AgedObesityRetrospective StudiesTreatment OutcomeTriglyceridesWeight LossYoung Adult

Pub Type(s)

Journal Article
Randomized Controlled Trial
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

23592676

Citation

Tang, Minghua, et al. "Normal Vs. High-protein Weight Loss Diets in Men: Effects On Body Composition and Indices of Metabolic Syndrome." Obesity (Silver Spring, Md.), vol. 21, no. 3, 2013, pp. E204-10.
Tang M, Armstrong CL, Leidy HJ, et al. Normal vs. high-protein weight loss diets in men: effects on body composition and indices of metabolic syndrome. Obesity (Silver Spring). 2013;21(3):E204-10.
Tang, M., Armstrong, C. L., Leidy, H. J., & Campbell, W. W. (2013). Normal vs. high-protein weight loss diets in men: effects on body composition and indices of metabolic syndrome. Obesity (Silver Spring, Md.), 21(3), E204-10. https://doi.org/10.1002/oby.20078
Tang M, et al. Normal Vs. High-protein Weight Loss Diets in Men: Effects On Body Composition and Indices of Metabolic Syndrome. Obesity (Silver Spring). 2013;21(3):E204-10. PubMed PMID: 23592676.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Normal vs. high-protein weight loss diets in men: effects on body composition and indices of metabolic syndrome. AU - Tang,Minghua, AU - Armstrong,Cheryl L H, AU - Leidy,Heather J, AU - Campbell,Wayne W, PY - 2011/12/02/received PY - 2012/06/27/revised PY - 2012/08/21/accepted PY - 2013/4/18/entrez PY - 2013/4/18/pubmed PY - 2013/12/24/medline SP - E204 EP - 10 JF - Obesity (Silver Spring, Md.) JO - Obesity (Silver Spring) VL - 21 IS - 3 N2 - OBJECTIVE: This study assessed the effectiveness of a prescribed weight-loss diet with 0.8 versus 1.4 g protein·kg(-1) day(-1) on changes in weight, body composition, indices of metabolic syndrome, and resting energy expenditure (REE) in overweight and obese men. DESIGN AND METHODS: Men were randomized to groups that consumed diets containing 750 kcal day(-1) less than daily energy needs for weight maintenance with either normal protein (NP, n = 21) or higher protein (HP, n = 22) content for 12 weeks. The macronutrient distributions of the NP and HP diets were 25:60:15, and 25:50:25 percent energy from fat, carbohydrate, and protein, respectively. Assessments were made pre and post intervention. The subjects were retrospectively subgrouped into overweight and obese groups. RESULTS AND CONCLUSION: Both diet groups lost comparable body weight and fat. The HP group lost less lean body mass than the NP group (-1.9 ± 0.3 vs. -3.0 ± 0.4 kg). The effects of protein and BMI status on lean body mass loss were additive. The reductions in total cholesterol, HDL-C, triacylglycerol, glucose, and insulin, along with LDL-C, total cholesterol-to-HDL-C ratio, and HOMA-IR, were not statistically different between NP and HP. Likewise, macronutrient distributions of the diet did not affect the reductions in REE, and blood pressure. In conclusion, energy restriction effectively improves multiple clinical indicators of cardiovascular health and glucose control, and consumption of a higher-protein diet and accomplishing weight loss when overweight versus obese help men preserve lean body mass over a short period of time. SN - 1930-739X UR - https://www.unboundmedicine.com/medline/citation/23592676/Normal_vs__high_protein_weight_loss_diets_in_men:_effects_on_body_composition_and_indices_of_metabolic_syndrome_ L2 - https://doi.org/10.1002/oby.20078 DB - PRIME DP - Unbound Medicine ER -