Psychological well-being response to high protein and high carbohydrate weight loss diets in overweight and obese men: Arandomised trial

Janna Lutze, Pennie Taylor, Grant D. Brinkworth, Belinda Wyld, Julie Syrette, Carlene J. Wilson, Peter M. Clifton, Manny Noakes

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Background & aims: High protein, low fat (HP) diets have established efficacy for weight management, but their effects on psychological well-being, particularly in men have not been well studied. This study compared an energy controlled HP diet with a high carbohydrate, low fat (HC) diet on psychological well-being after 1 year. Methods: 117 obese men (mean±SD, age 49.6±9.2 years; BMI 31.2±4.2kg/m2) were randomised to consumption of either an energy restricted (~7MJ/day), HP diet (n=57; 35% of total energy as protein, 40% carbohydrate, 25% fat) or an isocaloric, HC diet (n=61; 17% protein, 58% carbohydrate, 25% fat) for 52 weeks. Body weight and psychological well-being was measured with Profile of Mood States (POMS), Bachman's Self Esteem scale and the SF-36 instruments at baseline (week 0), week 12 and week 52. Results: Weight loss was (mean±SEM) 8.9±0.4kg (8.6%) at Week 12 and 10.5±0.8kg (10.5%) at Week 52 (p<0.001 for time); no difference between groups (p=0.91 time×diet effect). POMS subscales (anger-hostility, vigour-activity, confusion-bewilderment, tension-anxiety, depression-dejection, fatigue-inertia) and total mood disturbance score and the majority of SF-36 subscales significantly improved at one year (p≤0.05 for all). Self-esteem did not change significantly during the intervention (p=0.075). No effect of diet composition was evident for any of the psychometric measures assessed (p≥0.5 for time×diet effect). Conclusions: In overweight and obese men, weight loss on hypocaloric HP and HC diets were both effective in improving mood and general psychological well-being over one year.Registered under anzctr.org.au Identifier no. ACTRN 12606000002583.

LanguageEnglish
Journale-SPEN Journal
Volume8
Issue number6
DOIs
Publication statusPublished - 1 Dec 2013

Keywords

  • Diet composition
  • Mood
  • Obesity
  • Psychological
  • Weight loss

ASJC Scopus subject areas

  • Endocrinology, Diabetes and Metabolism
  • Nutrition and Dietetics

Cite this

Lutze, Janna ; Taylor, Pennie ; Brinkworth, Grant D. ; Wyld, Belinda ; Syrette, Julie ; Wilson, Carlene J. ; Clifton, Peter M. ; Noakes, Manny. / Psychological well-being response to high protein and high carbohydrate weight loss diets in overweight and obese men : Arandomised trial. In: e-SPEN Journal. 2013 ; Vol. 8, No. 6.
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title = "Psychological well-being response to high protein and high carbohydrate weight loss diets in overweight and obese men: Arandomised trial",
abstract = "Background & aims: High protein, low fat (HP) diets have established efficacy for weight management, but their effects on psychological well-being, particularly in men have not been well studied. This study compared an energy controlled HP diet with a high carbohydrate, low fat (HC) diet on psychological well-being after 1 year. Methods: 117 obese men (mean±SD, age 49.6±9.2 years; BMI 31.2±4.2kg/m2) were randomised to consumption of either an energy restricted (~7MJ/day), HP diet (n=57; 35{\%} of total energy as protein, 40{\%} carbohydrate, 25{\%} fat) or an isocaloric, HC diet (n=61; 17{\%} protein, 58{\%} carbohydrate, 25{\%} fat) for 52 weeks. Body weight and psychological well-being was measured with Profile of Mood States (POMS), Bachman's Self Esteem scale and the SF-36 instruments at baseline (week 0), week 12 and week 52. Results: Weight loss was (mean±SEM) 8.9±0.4kg (8.6{\%}) at Week 12 and 10.5±0.8kg (10.5{\%}) at Week 52 (p<0.001 for time); no difference between groups (p=0.91 time×diet effect). POMS subscales (anger-hostility, vigour-activity, confusion-bewilderment, tension-anxiety, depression-dejection, fatigue-inertia) and total mood disturbance score and the majority of SF-36 subscales significantly improved at one year (p≤0.05 for all). Self-esteem did not change significantly during the intervention (p=0.075). No effect of diet composition was evident for any of the psychometric measures assessed (p≥0.5 for time×diet effect). Conclusions: In overweight and obese men, weight loss on hypocaloric HP and HC diets were both effective in improving mood and general psychological well-being over one year.Registered under anzctr.org.au Identifier no. ACTRN 12606000002583.",
keywords = "Diet composition, Mood, Obesity, Psychological, Weight loss",
author = "Janna Lutze and Pennie Taylor and Brinkworth, {Grant D.} and Belinda Wyld and Julie Syrette and Wilson, {Carlene J.} and Clifton, {Peter M.} and Manny Noakes",
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Psychological well-being response to high protein and high carbohydrate weight loss diets in overweight and obese men : Arandomised trial. / Lutze, Janna; Taylor, Pennie; Brinkworth, Grant D.; Wyld, Belinda; Syrette, Julie; Wilson, Carlene J.; Clifton, Peter M.; Noakes, Manny.

In: e-SPEN Journal, Vol. 8, No. 6, 01.12.2013.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Psychological well-being response to high protein and high carbohydrate weight loss diets in overweight and obese men

T2 - e-SPEN Journal

AU - Lutze, Janna

AU - Taylor, Pennie

AU - Brinkworth, Grant D.

AU - Wyld, Belinda

AU - Syrette, Julie

AU - Wilson, Carlene J.

AU - Clifton, Peter M.

AU - Noakes, Manny

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N2 - Background & aims: High protein, low fat (HP) diets have established efficacy for weight management, but their effects on psychological well-being, particularly in men have not been well studied. This study compared an energy controlled HP diet with a high carbohydrate, low fat (HC) diet on psychological well-being after 1 year. Methods: 117 obese men (mean±SD, age 49.6±9.2 years; BMI 31.2±4.2kg/m2) were randomised to consumption of either an energy restricted (~7MJ/day), HP diet (n=57; 35% of total energy as protein, 40% carbohydrate, 25% fat) or an isocaloric, HC diet (n=61; 17% protein, 58% carbohydrate, 25% fat) for 52 weeks. Body weight and psychological well-being was measured with Profile of Mood States (POMS), Bachman's Self Esteem scale and the SF-36 instruments at baseline (week 0), week 12 and week 52. Results: Weight loss was (mean±SEM) 8.9±0.4kg (8.6%) at Week 12 and 10.5±0.8kg (10.5%) at Week 52 (p<0.001 for time); no difference between groups (p=0.91 time×diet effect). POMS subscales (anger-hostility, vigour-activity, confusion-bewilderment, tension-anxiety, depression-dejection, fatigue-inertia) and total mood disturbance score and the majority of SF-36 subscales significantly improved at one year (p≤0.05 for all). Self-esteem did not change significantly during the intervention (p=0.075). No effect of diet composition was evident for any of the psychometric measures assessed (p≥0.5 for time×diet effect). Conclusions: In overweight and obese men, weight loss on hypocaloric HP and HC diets were both effective in improving mood and general psychological well-being over one year.Registered under anzctr.org.au Identifier no. ACTRN 12606000002583.

AB - Background & aims: High protein, low fat (HP) diets have established efficacy for weight management, but their effects on psychological well-being, particularly in men have not been well studied. This study compared an energy controlled HP diet with a high carbohydrate, low fat (HC) diet on psychological well-being after 1 year. Methods: 117 obese men (mean±SD, age 49.6±9.2 years; BMI 31.2±4.2kg/m2) were randomised to consumption of either an energy restricted (~7MJ/day), HP diet (n=57; 35% of total energy as protein, 40% carbohydrate, 25% fat) or an isocaloric, HC diet (n=61; 17% protein, 58% carbohydrate, 25% fat) for 52 weeks. Body weight and psychological well-being was measured with Profile of Mood States (POMS), Bachman's Self Esteem scale and the SF-36 instruments at baseline (week 0), week 12 and week 52. Results: Weight loss was (mean±SEM) 8.9±0.4kg (8.6%) at Week 12 and 10.5±0.8kg (10.5%) at Week 52 (p<0.001 for time); no difference between groups (p=0.91 time×diet effect). POMS subscales (anger-hostility, vigour-activity, confusion-bewilderment, tension-anxiety, depression-dejection, fatigue-inertia) and total mood disturbance score and the majority of SF-36 subscales significantly improved at one year (p≤0.05 for all). Self-esteem did not change significantly during the intervention (p=0.075). No effect of diet composition was evident for any of the psychometric measures assessed (p≥0.5 for time×diet effect). Conclusions: In overweight and obese men, weight loss on hypocaloric HP and HC diets were both effective in improving mood and general psychological well-being over one year.Registered under anzctr.org.au Identifier no. ACTRN 12606000002583.

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