1.1 BMIの意味と詳細な分類
ボディマス指数(BMI)は、体重(kg)を高さ(m²)で割ることによって計算されます。BMIは、栄養状態を迅速に評価し、体重に関連する潜在的な健康リスクを予測するための便利なツールです。現在、多くのBMI分類システムが次のように8つの詳細なグループに更新されています。
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Severe Underweight: BMI under 16.0.
This indicates a critically undernourished state that may lead to serious health issues if not promptly addressed. -
Moderate Underweight: BMI from 16.0 to 16.9.
This group indicates a moderately underweight condition, requiring improved nutrition and health care. -
A Little Underweight: BMI from 17.0 to 18.4.
Although not as severe as the previous groups, this range suggests that the body has not reached an optimal weight and might benefit from nutritional supplementation. -
Normal: BMI from 18.5 to 24.9.
This is considered the ideal weight range, reflecting a healthy body with a low risk of disease when maintaining a balanced diet and lifestyle. -
Overweight: BMI from 25.0 to 29.9.
This group indicates excess body fat. Maintaining weight in this range may increase the risk of cardiovascular diseases, diabetes, and other health issues if not controlled. -
Obese Class I: BMI from 30.0 to 34.9.
This is the first stage of obesity, marking an increased risk of obesity-related conditions. Early intervention with proper diet and exercise is essential. -
Obese Class II: BMI from 35.0 to 39.9.
At this level, the risk of chronic conditions such as high blood pressure, diabetes, and heart disease increases significantly, requiring specialized health management. -
Obese Class III: BMI of 40.0 or higher.
This is severe obesity, which is associated with very high health risks and necessitates medical intervention as well as substantial lifestyle changes.