Energy balance
Energy balance is the key to all successful weight loss programs. All effective treatments essentially involve a change in the balance of the amount of calories or kilojoules consumed in relation to the energy expended.
The energy input is determined by the amount of food and drink consumed, and depends on the energy density, portion size and frequency of consumption. Energy expenditure is determined by metabolism, thermogenesis and activity. This is influenced by the frequency, intensity and duration of exercise.
Varying any one of these factors can have a significant impact on the total volume of energy consumed and metabolised, and can therefore have a significant impact on body weight.
However, for individuals with a body mass index (BMI) of greater than 35, diets alone rarely work and the National Institute of Health (NIH) has reported that most diets do not produce a sustainable weight loss. Therefore, the most effective treatments are likely to involve a combination of strategies, unique to each patient.
Most effective means of long-term weight loss control
Bariatric surgery is currently the most effective strategy available for long-term weight loss control. It is designed principally to enable easier modification of food intake, resulting in weight reduction to a safer and more comfortable range. Most of the associated conditions are then reduced in severity and many, completely reversed.
There is an improvement in mobility, body image, self-esteem and enjoyment of life.