Macro partitioning
An energy-restricted high-protein diet (30% protein, 40% carbohydrate, 30% fat) produces significantly greater weight loss and fat mass reduction than a traditional energy-restricted control diet (15% protein, 55% carbohydrate, 30% fat) in obese men over 8 weeks.
If you are an obese man looking to lose weight, switching to a diet with higher protein (30% of calories) and lower carbohydrates (40%) while keeping fat moderate (30%) and maintaining a calorie deficit will likely result in faster and greater weight loss than a standard low-fat, high-carb diet over an 8-week period.
The high-protein diet produced a greater weight loss (-8.3±1.2% versus -5.5±2.5%, P<0.012) than the control diet... The change in body weight was significantly higher (-8.3±1.2% versus -5.5±2.5%, P<0.012) in the HP-diet group as compared with the change in the C-diet group.
Why this rating
Randomized controlled trial with a small sample size (n=19) and short duration (8 weeks).
Source
Effects of two energy-restricted diets differing in the carbohydrate/protein ratio on weight loss and oxidative changes of obese men
Itziar Abete et al. · International Journal of Food Sciences and Nutrition · 2008
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