4 diets with varying levels of macronutrients for weight loss in overweight and obese adults

Mean weight loss at 2 years (kg)
ComparisonsDiet with higher macronutrient levelDiet with lower macronutrient levelDifference in weight loss, kg (95% CI)*
25% v 15% protein3.63.00.6 (–0.4 to 1.6)
40% v 20% fat3.33.30.0 (–1.0 to 0.9)
65% v 35% carbohydrates2.93.4–0.6 (–1.9 to 0.8)
  • *A positive difference indicates more weight loss with the diet with the higher macronutrient level.