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Doctor insights on: Bmi Calculators With Waist Measurements

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Dr. Cornelius O'Leary Jr
530 doctors shared insights

Body Mass Index (Definition)

Body mass index is also known as BMI. Body mass index (BMI) is a measurement based on a person's height and weight, to decide if a person is too heavy or too light for his height. The index is a number that can be in the underweight range, normal range, overweight range, or obese range. Children use different number ranges than adults do, ...Read more


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Hi, I was wondering what your view on the BMI system is. Do you think it is effective? Do you prefer BMI or waist to height? (for a research project).

Hi, I was wondering what your view on the BMI system is. Do you think it is effective? Do you prefer BMI or waist to height? (for a research project).

BMI vs waist to HT: What do you prefer for a research project. Because need both measurements needed for both estimates of obesity I would calculate them both and see which one works best for your study. There are very standard ways to measure these so look up exactly how to do it for a research project. Let us know what you find. ...Read more

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Btw I am obese. My BMI is 33. However i feel fatter even though my weight stayed the same. My waist has gotten bigger. Is this possible?

Btw I am obese. My BMI is 33. However i feel fatter even though my weight stayed the same. My waist has gotten bigger. Is this possible?

Yes: You are more likely to accumulate abdominal weight, which can increase your waist size. You need an aggressive program of diet and exercise as soon as possible. Check w/your doctor and a good registered dietitian. Programs like weight watchers can offer helpful support. ...Read more

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If my son who is 16.5 yrs old weight 168.5 pounds and is 5ft 3inch tall. Is this considered obses? What is optimum for him? Bmi is 30 and waist 36

Yes : If your son has a bmi of anything above 24-26 and especially > 27 with other health problems such as diabetes or high blood pressure then he would be considered clinically obese and therefore at risk healthwise. I would consult your doctor to check labs to rule out thyroid or diabetes. ...Read more

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I am 27. My wt is 67 kg, HT 165cm, BMI is 24.7 My waist however, is 85cm. I had my cholesterol done - high 5.8. BSL was 6.9. diastolic BP. HR 100.

I am 27. My wt is 67 kg, HT 165cm, BMI is 24.7 My waist however, is 85cm. I had my cholesterol done - high 5.8. BSL was 6.9. diastolic BP. HR 100.

What are you asking?: Please forgive me. Your best body weight is whatever looks and feels right to you while you are able to take part and keep up with peers doing your favorite athletic activities. The BMI charts were never intended as ideals for individuals, and in the most recent studies, "overweight" folks were healthier and lived longer. Hit the fitness stuff even harder and enjoy who you are. Best wishes. ...Read more

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34yrs M T2 diabetic since 2yrs, wt-54kgs, BMI - 18.6,waist-28', A1C-5.3. I'm very skinny, want to increase wt by 3kgs & waist by 2'. Please suggest?

34yrs M T2 diabetic since 2yrs, wt-54kgs, BMI - 18.6,waist-28', A1C-5.3. I'm very skinny, want to increase wt by 3kgs & waist by 2'. Please suggest?

? calorie counting: In general, one doesn't need to count calories but in your situation it might help. Use an online calorie calculator to estimate how many calories you need & are currently eating. Increase by 500 cal/day to gain 1 pound/week (3500 cal/pound). Continue to choose carbs wisely, consider eating more often, & go ahead & eat more (healthy) fat, watching how your glucose reacts. More protein, too! ...Read more

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Bmi of 15.5. 24" waist. 25 yr old f 5ft. Dipstick detected protein in urine. Dark green - 300? What is happening?

Bmi of 15.5. 24" waist. 25 yr old f 5ft. Dipstick detected protein in urine. Dark green - 300? What is happening?

Please see a pro: For a young woman with anorexia, a low bmi under 18 is common and 50% of people with anorexia have protein in their urine. This is a serious condition, life-threatening often. Please see a doctor who specializes in or is knowledgeable about anorexia! ...Read more

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Male, 32 age, BMI 21.9, waist-to-height ratio is 0.49 as pant size 33inches, height 68 inches, walk 2 miles daily, runner knee for 1 year, cure for it?

Male, 32 age, BMI 21.9, waist-to-height ratio is 0.49 as pant size 33inches, height 68 inches, walk 2 miles daily, runner knee for 1 year, cure for it?

An overuse syndrome: There are a few causes of runner's knee. The most common involves the front of the knee and is caused by damage to the cartilage lining the patella (patellofemoral pain syndrome). Another occurs on the lateral side from irritation of the iliotibial band. Treatment for both involve rest, nsaids, activity modification, and physical therapy.If left untreated both can become chronic problems. ...Read more

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Bmi doesn't account for waist size and muscle tone. Why is it still used? At 5-9 170, i'd still be considered overweight...Ridiculous.

You're right: It is widely acknowledged that bmi doesn't tell the whole story - it's just a guide. It's particulary wrong in muscular, healthy people who have a high bmi but are not fat. Ignore it. ...Read more

Bmi (Definition)

Bmi or body mass index is how we define if a person is under or overweight. It is calculated my taking your height in meters and dividing it by your weight in kilograms squared. Or using a bmi calculator. A normal weight is a bmi between 18-25. Obese is a ...Read more