Australian researchers published a long-term weight loss study in healthy adult overweight women (BMI initially ~32). In this study, they followed 79 women for more than a year to see how protein influences weight loss and compliance to a dietary program.
Women who followed a high protein diet lost MORE weight and more fat than those that ate the high carb diet. Protein intake was inversely related to weight and fat loss such that for those that ate more protein lost an average of 14 lbs and 10 lbs of fat compared to those that ate less protein (and more carbs) who lost 7 lbs and 5 lbs of fat over the course of a year. Body composition was measured by DEXA, the gold standard for body comp assessment. After 64 weeks, body fat was higher in those that ate more carbohydrate and lower in those that ate more protein. The same was seen for belly fat – more belly fat in those that ate a higher carb diet compared to the higher protein diet.
Dominick Walsh is a blogger for Performance Nutrition and TMRzoo.com and covers all men’s health topics and exercise issues including protein powders, diets, weight loss, weight lifting supplements, fat burners and supplement reviews. Dominick’s columns cover everything you need to know about your pre, during and post workout nutrition.