Body Mass Index (BMI) is the preferred way to determine how much an adult should weigh based on calculations involving height and weight.
National Institutes of Health (NIH) research shows that a BMI between 20.0 and 24.9 is associated with the lowest risk of death in healthy, non-smoking adults. People who have obesity-related problems that interfere significantly with work, family life or basic walking also may be eligible.
The ASMBS Guidelines now recommends bariatric surgery for individuals with a BMI of 35 or more regardless of presence, absence, or severity of obesity-related conditions and that it be considered for people with a BMI 30-34.9 with significant comorbidities such as Type 2 Diabetes, Obstructive Sleep Apnea, Uncontrollable Hypertension. It is also recommended that obesity definitions using standard BMI thresholds be adjusted by population and that Asian individuals consider weight-loss surgery beginning at BMI 27.5.
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