<b> Weight loss programs that guarantee results mislead their customers. </b> No program can ensure that someone who follows it will lose weight. These programs prey upon unhappy and insecure people who are often driven more by emotion than by reason. <b> Moreover, many people who lose weight while on a program eventually regain the weight within a year. </b> So while the programs' claims may be true for a short period, customers will be disappointed in the long run.
 The first boldface portion is the author's position; the second boldface portion is a consideration in support of that position.