In the US, health insurance companies won't pay for the procedure, unless the patient's body mass index or BMI is at least 35 even if the patient's diabetes is uncontrolled.

在美国，医疗保险公司不会支付这项手术费用，除非患者的体重指数(BMI)在三十五以上，即使病人的糖尿病病情已经失去控制。

In those observational studies, the people who eat more red meat are also smoking more, they're eating less fewer fruits and vegetables... they have higher body mass index, they're less physically active.

在那些观察性研究中，那些经常吃红肉的人往往都抽烟，也很少吃水果和蔬菜......他们的 BMI（身体质量指数）普遍较高，平时也不爱运动。