- Low-fat diet (60% carbs, 20% fat, 20% protein) – this diet had the greatest decrease in energy expenditure or metabolism, an unhealthy lipid pattern, and insulin resistance.
- Low-carbohydrate (10% carbs, 60% fat, 30 protein) – this diet had the greatest improvements in metabolism, but it had an increase in cortisol levels and C-reactive protein levels, both which lead to cardiovascular diseases.
- Low-glycemic index diet (40% carbs (complex/unrefined), 40% fat, 20% protein) – this diet had modest improvements in metabolism after weight loss and it did not have the adverse effects of inflammation or hormone level changes
Based on these findings, a low-glycemic diet after weight loss will help maintain the loss in weight better than a low-fat diet, and it will occur in a way that is healthier to the body, unlike a low-carbohydrate or low-fat diet. Furthermore, the researchers suggest that a low-glycemic diet may also be easier to follow post weight loss because it is less restricting than the other two diets.
Find our more information about this study at Science Daily: http://www.sciencedaily.com/releases/2012/06/120626163801.htm.