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Doctor insights on: What Is A Dangerously Low Bmi

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What is a dangerously low bmi? I'm 30 and have bmi of 16.

What is a dangerously low bmi? I'm 30 and have bmi of 16.

That's too low.: A BMI less than 19 is considered underweight and deserves medical and nutritional investigation. ...Read more

Dr. Cornelius O'leary jr
557 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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Can you please explain why a low BMI is dangerous if you aren't starving yourself?

Why is it low?: The main concern that I would have would be the reason why it's low. It may not just be low because it's the way you are. There may be something medical going on that's causing unnecessary weight loss, especially in someone of your age. This should be evaluated. ...Read more

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When I suffered from anorexia bmi of 12 I got a very dangerous arithmia that jumps your heart rate from low to high. What is it called?

When I suffered from anorexia bmi of 12 I got a very dangerous arithmia that jumps your heart rate from low to high. What is it called?

Tachycardia: Increased heart rate with regular heart beats is tachycardia, in some cases the beats are irregular and or abnormal and that is classified as an arrhythmia. Increased rate is called tachyarrthymia. Hope this helps what you are looking for. ...Read more

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How dangerous is a BMI of under 15?

Low bmi: Make sure the calculation is correct first, but that is a dangerously low bmi and needs to be addressed by a physician. ...Read more

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My friend is 28, 5'1 and has a BMI of 15. Is this dangerous for her? As she is worried.

My friend is 28, 5'1 and has a BMI of 15. Is this dangerous for her? As she is worried.

Yes: To achieve this bmi, she would have to weigh about 80 pounds, which could easily be harmful. Has she ever been evaluated for an eating disorder or chronic medical problems? ...Read more

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My BMI went up from 19 to 23 in 6 month (gained a lot of weight). What should be my main concerns, it that dangerous?

Keep track: Your weight is still "normal" per bmi criteria. You need to start keeping track of what you are doing. Are you consuming more calories than you are expending? Was you recently inactive for some reasons? Was u started on a new meditations? If nothing new had changed, then see your doctor for an evaluation. Good luck. ...Read more

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I went from have a bmi of 18.2 to 15.99 in six months. I'm 20 years old and I'm 5'6. I have tons of health issues, could this relate? How dangerous?

I went from have a bmi of 18.2 to 15.99 in six months. I'm 20 years old and I'm 5'6. I have tons of health issues, could this relate? How dangerous?

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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What are the dangers of low BMI?

What are the dangers of low BMI?

Low BMI: Indicates low weight & can cause anemia, low bone density, hormonal imbalance, low functioning immune system, cardiac problems, low energy, insomnia, constipation, frequent illnesses, malnutrition. ...Read more

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What to do if your BMI is too low?

What to do if your BMI is too low?

BMI: It really depends on your body type and health. My bmi is 16.5 but I have been this my entire life, exercise regularly, and eat adequate number of healthy calories (low fat, high protein, complex carbohydrates. My entire family is built like this. If on the other hand, you are a poor diet, losing weight and feel fatigued, you should consult your doctor to see a registered dietician. ...Read more

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My BMI seems really low is that a bad thing?

The opposite: You are 20 years old skinny with low BMI
you are the center of envy most women going to hate you for it
if you feel healthy, energetic, able to exercise no sickness you are OK
now if you think you are too skinny or pale you would like to gain weight see a doctor they will make sure you do not have any medical problem like anemia or thyroid or any other endocrine problem and help you to gain weight ...Read more

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What to do if I have low BMI but im healthy?

What to do if I have low BMI but im healthy?

Let it be: Hi. BMI is a continuum, and if you're just below 18.5 and healthy, don't sweat it. Stay healthy! ...Read more

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My son is 14 and weighs 96.4 his BMI is 15.4 is this extremely low?

Define extreme!: A 14 yo with a BMI index of 15.4 is at the 3% mark for weight/height. That projects to a height of 5'6.5". That puts him on the chart but means 97% of the kids his age are heavier. At 105 he would hit the 10% mark and a more normal weigh/height. ...Read more

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Do health consequences result from my low bmi? If so, what happens?

It depends upon: How low. Mildly low bmi's can be healthy if you have a healthy lifestyle. Very low bmi's, such as you see in people with eating disorders are potentially very harmful to the body. If you have questions, talk w/your doctor. ...Read more

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Had a low BMI of 15.8, & been trying to gain weight by exercising but the weight does not improve. Any good suggestions?

Had a low BMI of 15.8, & been trying to gain weight by exercising but the weight does not improve. Any good suggestions?

Healthy weight: A "healthy weight" varies from person to person. Some people are naturally thin, with low lean body mass. Are your periods normal (usually a good sign of overall health). Although a bmi of 15.8 sounds low for a 18 yo woman, it may be normal for you. See your doctor to get checked out for any condition that may be limiting your weight. ...Read more

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How often should I use the gym if I am trying to maintain a low bmi?

How often should I use the gym if I am trying to maintain a low bmi?

Nutrition and: Exercise. Exercise alone is usually not the answer to controlling body fat. You can maintain low body fat by just caloric restriction and conversely undo part of the beneficial effects of exercise by over-eating. ...Read more

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I'm 24. And I look too young for my age:- (. I weigh just 45 and my BMI is very low. Can anyone tell me how can I put on some weight.

If healthy, protein: If you are feeling well, and ideally have been evaluated by a physician recently to be sure you do not have a metabolic condition (such as thyroid disease or diabetes) and are not taking stimulant medications, then adding a protein supplement to your regular diet--without reducing your usual intake--can help. This can be as a snack bar, meal-replacement bar, or powder you add to drinks. ...Read more

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I need to gain my body weight. My height is 5'10 and my weight 54, which makes my BMI very low! Can you suggest me some useful tips? Thank you!

I need to gain my body weight. My height is 5'10 and my weight 54, which makes my BMI very low! Can you suggest me some useful tips? Thank you!

54 pound?: If that is the case, you have a very serious weight loss. I would like to know the cause before suggesting anything. I would like you to see your doctor and find out why you loose so much weight. If we know the cause, suggestion for treatment would be easier. Good luck. ...Read more

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28.BP110/72.LDL165, HDL43 Trig60X20%=12.Tot Chol220 (Lost 20 pds since then).BMI 22.7 and gluc >100.Inactive 2 mnths. Low Stroke Risk? Gpa had one at 60.

28.BP110/72.LDL165, HDL43 Trig60X20%=12.Tot Chol220 (Lost 20 pds since then).BMI 22.7 and gluc >100.Inactive 2 mnths. Low Stroke Risk? Gpa had one at 60.

Hi LDL: Hi. Your BP is excellent. Your LDL is high and your HDL is not great. Your triglycerides and calculated VLDL are great (and suggestive of good insulin sensitivity). You're young, and it's hard to recommend lifelong preventive medicine sometimes for some people (not for me or for many others, however). Glucose > 100 - was that fasting? If so, that's abnormal; if not, probably OK. I'd treat LDL. ...Read more

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I am 20 and my bmi is 16.5 my weight is almost same from past 1 year, I eat both meat and vegetable and I am physically fit but why my bmi is too low?

I am 20 and my bmi is 16.5 my weight is almost same from past 1 year, I eat both meat and vegetable and I am physically fit but why my bmi is too low?

BMI 16.5: That is quite low. If possible ask your former Pediatrician to share your growth curves - height and weight. If you have been growing slowly you should see an Endocrinologist. If you have lost weight you should see a fast to enter I locust. ...Read more

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IAteHealthy&Worked Out A Year Still 290&5'11&BMI has been tested 38. low iron still everything else perfect How do I not be fat? I've tried everything

BMI 38: You need to better control your diet and also exercise.

1: Make an appointment to see a dietitian.
2: Make an appointment to see an athletic trainer.

Don't expect improvement overnight - the dietitian and trainer will guide you through this. ...Read more

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My friend is 6'1" and 110 pounds, with a BMI of 14.5, runs 3 miles per day along with Yoga. Is he headed down a dangerous path?

My friend is 6'1" and 110 pounds, with a BMI of 14.5, runs 3 miles per day along with Yoga. Is he headed down a dangerous path?

Sounds good: "Body mass index" was never intended to be applied to individuals, though in non-athletes it is a crude measure of obesity / malnutrition. If your friend is light-framed and has this level of athleticism, stop worrying and be glad for his good health. The stuff about "low BMI people die sooner" just reflects the high mortality of cancer patients, deteriorated alcoholics and so forth. ...Read more

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How low could your BMI be before you stop missing periods?

How low could your BMI be before you stop missing periods?

BMI: Usually you need at least 17% body fat to have a period (for the ovariesto be able to secrete estrogen). But that doesn't mean it is exactly for the same for each person. ...Read more

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Is it bad to go on a low sugar diet for Anorexic recovery? My current BMI is 17.7 which is an increase from 15 point something.

Is it bad to go on a low sugar diet for Anorexic recovery? My current BMI is 17.7 which is an increase from 15 point something.

Well rounded is best: A high sugar diet, is really not the best choice, for anyone. While some sugar in your, diet is ok, this should be in the context of a well rounded and nutritionally balanced diet. Work with a nutritionist to figure out how to best do this. ...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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What are the dangers of low BMI and high cholesterol?

What are the dangers of low BMI and high cholesterol?

LDL, not Cholesterol: Cholesterol is a fat molecule manufactured by every animal cell, a building block of each cell membrane (enables membrane fluidity/movement without tearing), is fundamental to the survival of every animal cell. Lipoproteins (proteins which transport all fats in the water outside cells) is the correct issue for artery disease (e.g. Ldl ≤700 nmol/l, HDL ≥45 µmol/l). Cholesterol ↓$, but misleading. ...Read more

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Is it healthy if my BMI says im overweight but its muscle with low body fat?

Is it healthy if my BMI says im overweight but its muscle with low body fat?

Yes: Keep it up, so that this muscle mass won't turn into fat. The main idea is to be active and stay active as much as you can, eat healthy, sleep well, avoid alcohol and smoking, and enjoy your health, best wishes ...Read more

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Female 22years old Not physically active Eats 1500kJ per day BMI 18.1 Is this BMI too low? What is considered anorexia BMI?

No: As long you are in good health, performing your daily activities, not obsessed with your weight, it is okay. You will gain weight, as you age, do not get too worked up if your BMI goes up to 20 or so.
For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Drink enough water daily so that your urine is mostly colorless.
Practice safe sex.
Get HPV vaccine. ...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