我copy周福滿的書（Eat to live）作為回答

I prefer waist circumference and abdominal fat measurements because BMI can be inaccurately high if the person is athletic and very muscular. Ideally, your BMI should be below 23, unless you lift weights and have considerable muscle mass. As an example, I am of average height and build (5’10” and 150 pounds) and my BMI is 21.5. My waist circumference is 30.5 inches. Waist circumference should be measured at the navel.

….evidence suggests that abdominal fat measurement is a better predictor of risk than overall weight or size….

What if you feel you are too thin? If you have too much fat on your body but feel you are too thin, then you should exercise to build muscle to gain weight….

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• Thanks again. -student1- ♂ (0 bytes) () 10/13/2014 postreply 07:08:43