原來是在BMI 是在 23.5-24。 因為這個數值死亡率最低。
Mortality was lowest at a BMI of 22.5–25 for both sexes. Above this range, each five-unit increment in BMI was associated with about 29% higher overall mortality ([95% CI 27–32%]) (Aging Cell. 2014 Jun; 13(3): 391–400.)
最近還在 debate 要不要再減一點, 減到 BMI 22.5 也在這個健康範圍之內