However, you don't need an ab rocker or a special track with handles to concentrate on this area. The stability ball is well equipped to help you concentrate on your core. While lack of exercise is still a big problem, another major culprit is poor food portion control. So portion sizes obviously do matter. Learning to eat in moderation is important for successful weight management.
Portion size is especially important for higher fat foods like meat, oils, and full fat dairy.
A 3 oz skinless chicken breast is worth 165 calories. One teaspoon of oil or salad dressing is worth 45 calories. Many people rush into these yo-yo diets losing weight and gaining it back. Most of these diets rely on medical therapies, nutritional supplements, surgery, calorie restriction, and psychological strategies. None of these systems take into consideration genetics, metabolism, fitness level, medical history, and your current lifestyle.