Investigations in patients who have gained weight include cardiometabolic and nutritional screening, a fitness assessment for exercise and possibly referral to a multidisciplinary obesity service.
The global prevalence of people with a body mass index (BMI) over 30 kg/m2 has doubled, over 40 kg/m2 quadrupled, and over 50 kg/m2 increased fivefold. It is projected in Australia that if current rates of weight gain continue, normal-weight adults will constitute less than a third of the population by 2025, and the obesity prevalence will have increased by 65%.
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