Class III obesity can contribute to the development of several serious health conditions, such as Type 2 diabetes and heart disease.
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Obesity by BMI can be further stratified into class I (30-34.9), class II (35-39.9), class III (=40), class IV (=50), and class V (=60). Recommended cut points for overweight and obesity are lower in some Asian nations.
BMI rangesbelow 18.5 – you're in the underweight range. between 18.5 and 24.9 – you're in the healthy weight range. between 25 and 29.9 – you're in the overweight range. 30 or over – you're in the obese range.
The Link Between Obesity and Life ExpectancySome researchers have determined that, in those who are extremely obese, life expectancy may be reduced by an estimated five to 20 years.