Nutrisystem^® may show promise at reducing weight and body circumference

Few if any commercial weight loss programs have research to back up their use for short or long term weight loss.   Commercial diet plans are readily available to the most weight conscious consumer, but their cost may not be worth the investment because the evidence on their effectiveness for promoting weight loss is lacking.  There is some evidence to support the use of portion-controlled diets such as Nutrisystem ®.