The need to treat obesity successfully can be measured by the medical
penalty paid by the obese individual and the financial price paid by s
ociety in general. The management of obesity has 2 objectives: first,
to produce significant weight reduction (10% of pretreatment bodyweigh
t) and, second, to maintain this weight reduction. For the purpose of
this paper, we have defined successful treatment as that maintaining s
ignificant weight loss for at least 5 years. A review of the literatur
e confirms that there is no single outstanding treatment for obesity,
and that clinicians must consider an individual's needs before selecti
ng a particular method of weight reduction. The main determinants of s
uitability of any specific treatment are degree of obesity, concomitan
t medical disorders, urgency of treatment, and the individual's willin
gness to undergo the programme prescribed.