Hey there! Sign in to join this conversationNew here? Join for free

BMI...a guideline? Watch

Announcements
    • #1
    • Thread Starter
    #1

    I've seen people say that BMI shouldn't be taken too seriously, it doesn't account for muscle or body composition.
    But I've also seen people say that it can be a good indicator particularly in the underweight category.
    I've always had a low BMI but have never felt unhealthy. Currently I swim three times a week, do other workouts twice and eat 3 good, nutritious meals a day plus 2-3 snacks and dessert.

    18.5 is the lower boundary for being a healthy weight, anything below is considered underweight. On the left I am 115lbs at 5 ft 6 with a BMI of 18.6 (only just in the healthy range), on the right I am 105lbs with a BMI of 16.9. Now 16.9 is supposedly ridiculously underweight but I don't feel or think I look too thin. I'm 20 so shouldn't be using the childs BMI tools, but do I need to gain weight? I'm happy with my body but BMI says I'm unhealthy

    Attachment 702872
    • #2
    #2

    BMI tends to be more of a guide then anything else, and from what you say you seem to have a healthy lifestyle but - important but - if you don’t feel sure the best answer is always to ask a doctor!
    Posted on the TSR App. Download from Apple or Google Play
    • TSR Support Team
    Offline

    20
    ReputationRep:
    (Original post by Anonymous)
    I've seen people say that BMI shouldn't be taken too seriously, it doesn't account for muscle or body composition.
    But I've also seen people say that it can be a good indicator particularly in the underweight category.
    I've always had a low BMI but have never felt unhealthy. Currently I swim three times a week, do other workouts twice and eat 3 good, nutritious meals a day plus 2-3 snacks and dessert.

    18.5 is the lower boundary for being a healthy weight, anything below is considered underweight. On the left I am 115lbs at 5 ft 6 with a BMI of 18.6 (only just in the healthy range), on the right I am 105lbs with a BMI of 16.9. Now 16.9 is supposedly ridiculously underweight but I don't feel or think I look too thin. I'm 20 so shouldn't be using the childs BMI tools, but do I need to gain weight? I'm happy with my body but BMI says I'm unhealthy

    Attachment 702872
    BMI is only a guideline and can't be too accurate cos it doesn't know how much of you is fat or muscle (they weigh different amounts).
    If it's saying you're ridiculously underweight though and you are sure you've used the right measurements it's probably worth checking with a doc. BMI shouldn't be so inaccurate that it's shoving you an an extreme of the wrong category.
    Go onto the NHS BMI checker, make sure you're using your age and sex and the right measurements then see what it says. If it's still saying you're really underweight it might be worth checking with a doctor.

    Hope that helps.
    Posted on the TSR App. Download from Apple or Google Play
    Offline

    14
    ReputationRep:
    3 good, nutritious meals a day plus 2-3 snacks and dessert. just to be clear what do you actually eat.
    Offline

    8
    ReputationRep:
    BMI is a very weak indicator of health. If you feel healthy, odds are that you're healthy.
    • TSR Support Team
    Offline

    19
    ReputationRep:
    It's very inaccurate as it doesn't take into account muscle mass. Think of those big powerful rugby players like Billy Vunipola or Tadgh Furlong who weigh 120-130kg, every BMI calculator will show them as obese when it's clearly not the case.
    • #1
    • Thread Starter
    #1

    (Original post by paulbarlow)
    3 good, nutritious meals a day plus 2-3 snacks and dessert. just to be clear what do you actually eat.
    Something like

    Breakfast- bowl of porridge with berries and honey

    Lunch- pastrami and mustard sandwich on seeded bread, a yoghurt, packet of savoury snacks (like pea snacks from ALDI which are like flavoured baked pea pods) and fruit such as grapes or a plum. Occasionally a cake bar if I have them in

    Dinner- Honey glazed salmon fillet with lemon and coriander cous cous and green veg medley

    Dessert- some flavour of ice cream

    Snacks- more fruit, a seed-nut-dried fruit medley, a couple of biscuits with a cup of tea
    Offline

    10
    ReputationRep:
    (Original post by Anonymous)
    I've seen people say that BMI shouldn't be taken too seriously, it doesn't account for muscle or body composition.
    But I've also seen people say that it can be a good indicator particularly in the underweight category.
    I've always had a low BMI but have never felt unhealthy. Currently I swim three times a week, do other workouts twice and eat 3 good, nutritious meals a day plus 2-3 snacks and dessert.

    18.5 is the lower boundary for being a healthy weight, anything below is considered underweight. On the left I am 115lbs at 5 ft 6 with a BMI of 18.6 (only just in the healthy range), on the right I am 105lbs with a BMI of 16.9. Now 16.9 is supposedly ridiculously underweight but I don't feel or think I look too thin. I'm 20 so shouldn't be using the childs BMI tools, but do I need to gain weight? I'm happy with my body but BMI says I'm unhealthy

    Attachment 702872
    don't waste a doctors time with this, a couple of people are actually recommending that which really shocks me
    If you feel fine then why are you worrying? you seem to have a healthy lifestyle, if ur happy with ur body who cares if your in the underweight category
    Offline

    14
    ReputationRep:
    (Original post by Anonymous)
    Something like

    Breakfast- bowl of porridge with berries and honey

    Lunch- pastrami and mustard sandwich on seeded bread, a yoghurt, packet of savoury snacks (like pea snacks from ALDI which are like flavoured baked pea pods) and fruit such as grapes or a plum. Occasionally a cake bar if I have them in

    Dinner- Honey glazed salmon fillet with lemon and coriander cous cous and green veg medley

    Dessert- some flavour of ice cream

    Snacks- more fruit, a seed-nut-dried fruit medley, a couple of biscuits with a cup of tea
    seems a decent menu. if thats your normal food who can say why your skinny. i wish i had that problem. just make sure you dont lose more.
    Offline

    18
    ReputationRep:
    How much do you eat? If you're swimming 3 times a week plus other workouts you should be eating more than an average person.
    Posted on the TSR App. Download from Apple or Google Play
    • #1
    • Thread Starter
    #1

    (Original post by Student-95)
    How much do you eat? If you're swimming 3 times a week plus other workouts you should be eating more than an average person.
    I posted an average menu above but when I come in from a swim or workout I usually have a protein bar and high protein yogurt such as greek style or a bowl of Skyr with fruit
    Offline

    18
    ReputationRep:
    (Original post by Anonymous)
    I posted an average menu above but when I come in from a swim or workout I usually have a protein bar and high protein yogurt such as greek style or a bowl of Skyr with fruit
    How many calories? Listing a bunch of food doesn't really tell us much.
    Posted on the TSR App. Download from Apple or Google Play
    • #1
    • Thread Starter
    #1

    (Original post by Student-95)
    How many calories? Listing a bunch of food doesn't really tell us much.
    Breakfast comes to around 350 for the porridge
    Lunch around 500 for the packed lunch style
    My dinners can range from 500-700
    If my daily snacks were to be some trail mix, a crumpet with butter and three biscuits then that's about 400-450

    That alone is 1750-2000 calories, not including calories from cooking oils (which I don't measure, I just use as much as I need) or drinks or the protein bars on days I eat them which are about 160-180 each I think
 
 
 
Reply
Submit reply
TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

Updated: November 14, 2017
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • Poll
    Will you be richer or poorer than your parents?
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

    Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

    Quick reply
    Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.