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Your personal nutritionist
By Mary Hartley, RD
Director of Nutrition

Your BMI calculator states I'm at 26 but my calculation says BMI 16. Why the difference?
Asked by anonymous on Jun 25, 2008 in Weight Loss



As a male at age 54, I work out regularly and have a muscle-toned body. My waist measures 34 inches. Still, I feel that I need to lose 15 to 20 pounds. Your calculation says my ideal weight should be 146 lbs. That seems to low for my type of body. I presently weigh 185. Should I try to lose 39 pounds?


Answer

Your BMI is 26, but your ideal weight is not 146 lbs. For your height of 5’8”, the adequate weight range (BMI 19-24.9), is 125 – 158 lbs. The weight at the high end is for people with large bones and for most men, but some athletes have a BMI in the overweight range (BMI 25 – 29.9) because of increased muscularity rather than extra fat.  But, as a predictor of obesity-related disease risk, an individual’s waist circumference is more important. A man’s waist circumference should be less than 40 inches and a woman’s should be less than 35 inches.



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