The comparison of effects of high protein-low fat diet, and standard diet on weight loss

Obesity is one of the most important problems in the world. Suitable low calorie diets are among the best ways for weight loss. The aim of this study was to determine the effects and comparison of two kinds of low-calorie diets on weight loss. Seventy- six health women (20-55 yrs old) were randomly divided into two groups for 3 months: 39 subjects in standard diet group (SD) (carbohydrate 55%, fat 30%, protein 15%), and 37 persons in high protein-low fat diet group (HPD) (carbohydrate 55%, fat 20%, protein 25%). Energy intake was 1000 kcal less than the daily needs in the two groups. In the beginning and at the end of each month the subjects were visited and food diet energy was adjusted. In the beginning and finally BMI, waist circumference, hip circumference, and waist to hip ratio were measured. BMI decreased 4. 43±0.96 v. s 4. 15±0.76 in SD and HPD groups, respectively. The amount of weight loss was 10. 89 2.04 in SD and 10. 48 1.73 in HPD. Waist to hip ratio decreased 0. 02±0.014 v. s 0. 018±0. 014 in SD and HPD, respectively. For all variables there was no significant difference between two groups. Both low calorie diets (SD and HPD) decreased weight and other obesity indices. Therefore, HPD may be a suitable substitution for standard diet.