Effect of Low Calories Diet to Decrease Weight of Obesity

The main objective of the present study was to investigate the effect of restricted calories diets on the treatment of obesity by assessment of weight, body mass index, waist circumference, hip circumference and waist to hip ratio. The study included 90 obese female patients between 30 to 50 years old suffering "only" from obesity (BMI ≥30 kg/m²) followed in obesity and slim clinic in Cairo, Egypt for 12 weeks. Their diet was modified to provide 1250–1350 kcal. The patients were divided into 3 groups (n=30) as follows:Group1 was taken a high carbohydrate low fat diet (HCLF) (70% Carbohydrate, 10% Fat and 20% protein), Group2 was taken a high fat low carbohydrate diet (HFLC) (35% Carbohydrate, 45% Fat and 20% protein) and Group3 was taken high protein low carbohydrate diet (HP LC) (30% Carbohydrate, 30% Fat and 40% protein).The results showed the weight of (HP LC) group decreased significantly (70.48±11.47kg) compared with (HCLF) group (79.74±9.36kg) and (HFLC) group (78.75±8.24kg). The BMI of (HPLC) decreased significantly 27.11±2.24kg/m² compared with BMI of (HCLF) 30.98±2.61kg/m² and (HFLC) 28.97±3.56kg/m². The waist circumference (WC) of (HFLC) and (HPLC) decreased significantly compared with (HCLF) 103.84±6.79cm. Similar findings were recorded in the hip circumference. Total cholesterol (TC) significantly increased (HCLF) and decreased in (HFLC) and (HPLC). Similar findings were recorded with triglyceride (TG). The level of HDL significantly decreased in (HCLF) compared with (HFLC) and (HPLC) which increased significantly. The results of LDL increased significantly in (HCLF) compared with (HFLC) and (HPLC) which decreased significantly. This study suggests that low-carbohydrate diets are the best effective than low-fat high carbohydrate diets at reducing weight. The Low-carbohydrate high protein diet is a safe and more effective option for medically supervised weight loss and body composition in severely obese cases.