This study divided 54 obese patients up into 2 groups, both of which were put on lower calorie diets (meaning a caloric deficit was present) and fed similar percentages of protein, fat and carbs. HOWEVER, one group was given a more balanced diet comprised of meals that contained protein, fat and carbs, while the second group had their carb and fat calories separated so they were not eaten together in the same meal. Guess what happened? They all lost the same amount of weight and body fat. Why? Because the manner in which you combine foods, organize your meals and consume your daily calories isn’t what causes fat loss. A caloric deficit is.
Research has shown that the calorie density of our diets will impact our weight. The calorie density is the amount of calories in a given weight of food. Consuming foods that are considered low-calorie dense aids in weight loss. These foods will provide a high volume without a lot of calories. By replacing foods that are considered high-calorie dense, you save additional calories. Some find it more satisfying to focus on consuming low-calorie dense foods in large quantities versus counting calories. The Pritikin diet also encourages daily exercise and stress-reduction techniques.

Lap band (gastric banding) surgery, also referred to as laparoscopic adjustable gastric banding (LAGB) is a surgical procedure in which an adjustable belt is placed around the upper portion of the stomach. Candidates for lap band surgery are generally individuals with a body mass index over 40 kg/m2, or are more than 45 kilograms over their ideal body weight. Side effects, risks, and complications from lap band surgery should be discussed with a surgeon or physician prior to the operation.