Up to 20% of the UK population are clinically obese (i.e. BMI>30). This has serious consequences both on mortality and morbidity. Management is based around a negative energy balance as a consequence of long-term low-intensity exercise and diet (500–600 kcal/day defecit).
Crash and fad diets are unlikely to be sustained. All alcohol should be minimised as it contains a significant number of calories though is devoid of nutrition. Drug treatments should only be considered where behaviour modification has failed, and are only likely to work alongside exercise and diet.
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