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Doctor insights on: My Bmi Is Underweight

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How can I gain weight? I've ate a lot of food everyday, almost more than 3 meals a day. But my BMI says i'm still underweight..

How can I gain weight? I've ate a lot of food everyday, almost more than 3 meals a day. But my BMI says i'm still underweight..

How tall are you,: How much to you weight, what is your age and gender? If you are otherwise healthy, do not worry about low bmi. In a few years you will gain weight without trying and then will look back at this period fondly. ...Read more

Dr. Cornelius O'leary jr
559 doctors shared insights

Body Mass Index (Definition)

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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Every week i get fever and now cold.. I'm very thin my BMI is underweight.

Every week i get fever and now cold.. I'm very thin my BMI is underweight.

Your immunity: Is in poor shape and might be a reflection of your diet, especially all the sweet "junk", caffeine, diet drinks etc. Try looking at this and get a good multivitamin. ...Read more

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I'm 10 weeks pregnant and gained a significant amount of weight in my first trimester. However, my BMI was underweight (110lb at 5.7ft) before conceiving. Now my BMI is "normal". Does being underweight before make my extra weight gain ok?

I'm 10 weeks pregnant and gained a significant amount of weight in my first trimester. However, my BMI was underweight (110lb at 5.7ft) before conceiving. Now my BMI is "normal". Does being underweight before make my extra weight gain ok?

Pregnant weight: Absolutely. Those with a pre-pregnancy BMI under 18.5 should gain 28–40 pounds. Normal-weight women (BMI, 18.5–24.9) should aim for 25–35. Overweight women (BMI, 25–29.9) should aim for 15–25. Obese women (BMI, 30 or more) should gain only 11–20. Govern a starting BMI of 17.2 I would expect you to gain 40 pounds.

...Read more

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Why might I look fat if my BMI says i'm underweight?

Why might I look fat if my BMI says i'm underweight?

Two issues: Bmi is an estimate dependent on a fudge factor that assumes bone structure & muscle mass are consistent along all body types.It can be off some. To verify bmi assessment, plotting height & weight along standardized growth charts (cdc or who) gives a better graphic representation of proper weight for height. If you are underweight by both systems, your brain may be giving you a distorted self image. ...Read more

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I eat a lot but i dont gain any weight, my BMI tells me im underweight, what can i do to gain weight and look healthy?

BMI: I would have your pediatrician share your height and weight charts.
If they are both below the normal ranges you need to see a Pediatric Endocrinologist.

If they are both normal - relax.

If one is OK but the other is not you need the pediatric endocrinologist. ...Read more

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My BMI indicates that I am underweight (bmi is 18.02) should I gain weight?

My BMI indicates that I am underweight (bmi is 18.02) should I gain weight?

You're not a number: The BMI was never intended for use by individuals. If you feel well, are athletic, & keep up with peers at fitness activities, you have no reason to change. Elite track athletes have BMI's like yours. And don't try to gain by eating to gain fat -- a man needs no body fat and a woman needs only a little. Exercise regularly, handle any health issues with your physician's help & weight self-solves. ...Read more

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How can I gain weight? I've ate a lot of food everyday, almost more than 3 meals a day. But my BMI says i'm still underweight..

How tall are you,: How much to you weight, what is your age and gender? If you are otherwise healthy, do not worry about low bmi. In a few years you will gain weight without trying and then will look back at this period fondly. ...Read more

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Hi doctor I am male of 23 years age my BMI shows that i m underweight i dontget healthy whenever i started to gain weight suddenly again i become thin?

Not clear: Uncertain I am clear about your position. Inability to gain weight can be genetics or due to your health status. You may have a condition that accelerates weight loss - such as an over active thyroid or a condition that does not absorb food, what we call malabsorption. You physician can clarify this. ...Read more

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Im underweight my bmi: 16, tried everything but cant gain kgs, don't hve any disease, can you tell me hw to gain weight?

Im underweight my bmi: 16, tried everything but cant gain kgs, don't hve any disease, can you tell me hw to gain weight?

Can be hard: To gain weight, just like for more individuals the opposite is true in regards to weight loss. Assuming your doctor has ruled any disease like thyroid or malabsorption issues, it will come down to a balancing act of consuming more calories than your burn(need more in than "out"). This can require strict monitoring of the caloric content of your food and activity levels. ...Read more

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Can you tell me is 16.0 a underweight bmi?

16 BMI: Yes, underweight is less than 18.5 BMI. ...Read more

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What is defined as an underweight BMI for kids?

What is defined as an underweight BMI for kids?

Talk to MD: Your pediatrician is the best one to answer this question for the simple reason that they have been tracking your child for a while. The child should remain fairly stable on the growth chart. All children vary in shape and size, some of it is from genetics and some of it is from nutrition. Talk to your md. ...Read more

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I'm underweight, my BMI is 18.6, what shall i do?

Slowly gain: Eat a health diet with some increased carbohydrates. Be sure to eat balanced meals and stay healthy with exercise as well, so you do not get fat, yet your weight slowly rises to a weight you are comfortable with. It is best to discuss with your dr. And parents, so the dr. Can provide support and diet advice and your parents can help as well. Best wishes. ...Read more

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Hoping you can tell me, is BMI of 15.9 too underweight?

If your BMI is: 15.9 and you're a female who is about 5 feet tall, your weight would have to be about 80 pounds -- which would be considered very, very thin and probably unhealthy. Are we talking about someone with an eating disorder who needs psychiatric help? ...Read more

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I am at the 8th percentile and BMI of 16.3 for my age, height, and weight. Is this underweight?

I am at the 8th percentile and BMI of 16.3 for my age, height, and weight. Is this underweight?

It would fall: In the underweight category, but may be appropriate for you. Have you discussed it with your doctor? ...Read more

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How bad is it to be underweight? 85 pounds and I have a BMI of 16.1. I eat roughly 1000-1500 per day, help?

What you have: Is called an eating disorder and is a very dangerous and often deadly disease, check w/your psychiatrist about how best to treat it, . ...Read more

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My BMI is 18 & so I am classed as underweight. I am trying to be more healthy&fit, so if i lose a couple of pounds would this be bad for my health?

Underweight: If underweight is due to low calorie intake or bulimia it is not good however if u have always been low weight u may be fine being over active and eating less may push you to a weight at which u stop having cycles cycles with incresed Estrogens are important for bone mass donot lose weight by cutting intake at this stage make sure you donot have a medical cause for weight loss. ...Read more

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My BMI is no correct. I am highly underweight. Now I am 22 and my weight is around 52 kgs. So kindly suggest me some tips for increasing my weight.?

My BMI is no correct. I am highly underweight. Now I am 22 and my weight is around 52 kgs. So kindly suggest me some tips for increasing my weight.?

How do you feel: Not knowing your height , it is hard to advise you. But if you are feeling tired and run down, it may be nutritional. If you have lost weight with out trying you may have a medical condition which is hidden. Start learning about how many calories are in your food. See your doc if things aren't adding up. ...Read more

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BMI =16.8. Dr says gain, so I have been trying. I agree I am way too low. Wat underweight BMI is close enough to be healthy as I am naturally light ?

BMI =16.8. Dr says gain, so I have been trying.  I agree I am way too low. Wat underweight BMI is close enough to be healthy as I am naturally light ?

Underweight: Metabolism differs from person to person and at various stages of our life. Please see a nutritionist to find out the best way to stay healthy and possibly gain some weight. Peace and good health. ...Read more

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My height is 1.532 m my weight is 44.543 kg and my BMI is 18.98 kg . I can't seem to gain weight even with bc pills. Am i consider underweight?

My height is 1.532 m my weight is 44.543 kg and my BMI is 18.98 kg . I can't seem to gain weight even with bc pills. Am i consider underweight?

Underweight: Did these issues develop before age 24? If so you must see a Gynecologist as soon as possible.
Even if this occurred closer to age 24 you must see the Gynecologist.
Hope all goes well. ...Read more

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Is an underweight BMI consistent with someone being fat?

Yes: They can still have excess fat and very little muscle tissue due to poor dietary intake and very limited exercise -- but it is not nearly as common as people who are fat with a high bmi. ...Read more

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According to BMI I am underweight (bmi is 18.02) should I gain weight, what to do?

According to BMI I am underweight (bmi is 18.02) should I gain weight, what to do?

Need to see doctor.: I usually like to provide concrete answers to questions here, but your query requires some definitive testing. There could be many metabolic, infectious, nutritional, gastrointestinal, endocrine issues causing the problem with your weight. Your BMI is dangerously low. You need to initiate a local work-up with a doctor right away. Please. ...Read more

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I am a 6ft 2in male with a weight of 60.3 kg that's a BMI of about 17.1 if i've done the sums right is this underweight?

I am a 6ft 2in male with a weight of 60.3 kg that's a BMI of about 17.1 if i've done the sums right is this underweight?

Forget numbers: The "ideal weight" and "body mass index" are subscientific especially in athletes. Your best weight is what looks and feels right to you and makes you able to compete successfully with your peers in athletics. If you have only a little body fat, that's great -- a man's best with none. Your weight might be that of a 6'2" sprinter; a healthy 6'2" muscled-up linebacker might be almost 2x your weight. ...Read more

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How can I gain weight? I have been struggling to gain weight and according to my age , height, and BMI I am considered underweight.

Check caloric intake: The most common reason for being underweight according to bmi assuming you are taking in enough calories for your height is genetics. If one of your parents have he same body type, it does become more difficult to gain weight. With that said, it is important to eat more calories that what you are expending. Check how many calories you are burning at rest, with daily activities, and with exercis. ...Read more

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I'm 20 years female,I'm severely underweight my BMI is 15 my eating habit is normal and I feel hungry most of time I do not know what is my problem ?

I'm 20 years female,I'm severely underweight my BMI is 15 my eating habit is normal and I feel hungry most of time I do not know what is my problem ?

Need to see doctor.: I usually like to provide concrete answers to questions here, but your query requires some definitive testing. There could be many metabolic, infectious, nutritional, gastrointestinal, endocrine issues causing the problem with your weight. Your BMI is dangerously low. You need to initiate a local work-up with a doctor right away. Please. ...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


Dr. Syed H. Sajid
128 doctors shared insights

Low Body Weight (Definition)

Body mass index (BMI) uses a man or woman’s height & weight to estimate body fat. Many consider a BMI of less than 18.5 kg/ ...Read more