Why would thyroid issues cause weight gain?

trjjoy
trjjoy Posts: 666 Member
I don't understand this. All bodily processes and cells require fuel aka calories. Someone who weighs a certain weight and who has a certain activity level will require x number of calories.

What, exactly, is it that a thyroid issue does to supposedly make people gain weight?
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Replies

  • yirara
    yirara Posts: 9,941 Member
    Like I said, the reduction in metabolic rate is 4% max, one time. There's quite a bit of research done on that. It also doesn't seem to recover. Meaning if you eat as before you'll slowly gain a bit of weight until you've reached a new equilibrium, provided you don't eat more.

    Btw, I do have hashimotos, and was untreated when losing weight on here.
  • trbp72
    trbp72 Posts: 33 Member
    edited May 2019
    I think as long as you have the issue in check (using the medication right) and are excercising regularly...it will work itself out...I mean I have started to take my medication first thing before I eat or drink anything (other than water to wash the levythyroxine down) as prior to my last testing I was just taking all my tablets together...and it was suggested to me that taking them as instructed (at least 30 minutes before eating or drinking anything but water) would be beneficial...so I have been doing that for a while and I think that coupled with the regular exercise routine I have going, my weight is coming down...but I also think that it would come down quicker if I didn't have the thyroid issue...so yes the issue slows down the process and indeed can also stunt muscle mass growth as well...I am not concerned with bulking up just yet...but it may prove difficult to do so because of the thyroid problems...

    It all boils down to whether you become inactive because of the thyroid problems...and yes all the other issues that may accompany it...such as water retention, etc. that will contribute to weight gain...
  • trjjoy
    trjjoy Posts: 666 Member
    untreated hypothyroidism will certainly cause weight gain (unless you eat much less) - metabolism will be slower, person will move less, sleep more, get constipated.
    is still CICO - the calories out side is much lower.


    Why would CO be much lower? A body consists of cells that need calories/energy. A body with hypothyroidism doesn't lose limbs or organs so that body would still need a certain amount of calories to function because it still has all those cells and bodily processes to maintain.
  • Fuzzipeg
    Fuzzipeg Posts: 2,301 Member
    the malfunction in the thyroid endocrine system means everything happens more slowly. Being slowed, the person being less physically active - lacking energy means the body uses fewer calories because it is doing less. Frequently everything is happening less well- breathing - circulation - cell reproduction- muscle activity -digestion/elimination=constipation - mental functioning is slowed and so much more in many people so the body uses fewer calories. Our bodies have their individual ways in which they express our personal version.

    Often the medical profession refuse to test our t3 levels even when they do it is usual to assume total t3 is correct even though it is known without the correct balance of minerals the t3 can be made incorectly, making our three pin plugs the wrong way round - negative where the positive should be so these reverse t3 will never fit into a cell and float about doing absolutly nothing except confuse the doctors.

    Most important is the thyroid gland being central to the endocrine system can eventually fail because another gland is running slow or fast. Again the medical profession does not recognise this fact.

    Most of us who are hypothyroid never have our antibodies tested, antibodies show the presence of autoimmunity which needs a specialist approach to reduce the antibodies which in general medicine does not happen.

    in order to function properly the endocrine system needs iodien, selenium, and more minerals it also needs a full compliment of vitamins e, d and the like. I have heard on some radio programms, here in the UK, nutritionists saying the daily recomended daily allowance is way too low. Where a person is in defficit they need higher levels to bring them back to what is looked on as "normal". Normal for one is greater or lesser than for another. We are individuals.

    May be to answer your question more precisely - the body does not loose limbs - it looses the ability to make the limbs and other essential functions work effectively.
  • Lillymoo01
    Lillymoo01 Posts: 2,865 Member
    trjjoy wrote: »
    untreated hypothyroidism will certainly cause weight gain (unless you eat much less) - metabolism will be slower, person will move less, sleep more, get constipated.
    is still CICO - the calories out side is much lower.


    Why would CO be much lower? A body consists of cells that need calories/energy. A body with hypothyroidism doesn't lose limbs or organs so that body would still need a certain amount of calories to function because it still has all those cells and bodily processes to maintain.

    You have less energy so move less. The less you move (including fidgeting) the less you burn.
  • SCoil123
    SCoil123 Posts: 2,111 Member
    I have treated my thyroid disease. Even with treatment I find that I burn 200-300 calories less than any calculator has estimated. I also retain fluids easily and bloat up regularly, sometimes by as much as 10lb over night. Add to that the fatigue and joint pain that can get in the way of activities and yes you can absolutely gain weight.

    You can also just as easily lose weight though when you understand these things. I don’t worry about the sudden fluctuations anymore because I know what they are. I adjusted my calorie intake accordingly and was able to reach a healthy weight again.
  • cheryldumais
    cheryldumais Posts: 1,907 Member
    SCoil123 wrote: »
    I have treated my thyroid disease. Even with treatment I find that I burn 200-300 calories less than any calculator has estimated. I also retain fluids easily and bloat up regularly, sometimes by as much as 10lb over night. Add to that the fatigue and joint pain that can get in the way of activities and yes you can absolutely gain weight.

    Me too. Sigh
  • paperpudding
    paperpudding Posts: 9,281 Member
    and, adding to the n = 1's - I suddenly lost thyroid function - after surgery to remove half my thyroid due to a tumour.

    This made absolutely no difference to my maitenance - I maintained on exactly same calories as before the surgery.

    But obviously that is because I was commenced on adequate thyroxine replacement

    UNTREATED hypothyroidism will certainly lead to weight gain.

    Of course it depends on the degree too - somebody with a slightly underfunctioning thyroid may not notice much difference - somebody with a severely underfunctioning untreated one certainly would
  • SCoil123
    SCoil123 Posts: 2,111 Member
    AnnPT77 wrote: »
    SCoil123 wrote: »
    I have treated my thyroid disease. Even with treatment I find that I burn 200-300 calories less than any calculator has estimated. I also retain fluids easily and bloat up regularly, sometimes by as much as 10lb over night. Add to that the fatigue and joint pain that can get in the way of activities and yes you can absolutely gain weight.

    You can also just as easily lose weight though when you understand these things. I don’t worry about the sudden fluctuations anymore because I know what they are. I adjusted my calorie intake accordingly and was able to reach a healthy weight again.

    Oddly enough, I have treated my severe hypothyroidism, and find that I burn several hundred calories more daily than MFP and some other calculators estimate (not to mention my Garmin Fitness tracker which similarly underestimates). MFP and the tracker run about 25-30% below the calorie burn I've seen over 3+ years of careful logging. I actually lost weight too fast before I realized this, and had to adjust intake sharply upward to maintain energy and strength. I still lost at a good rate, 50 pounds in less than a year.

    There is variation in calorie requirements among individuals, including healthy individuals. Reasons are not fully/clearly understood in all cases. The estimates aren't gospel for anyone (though they're close for most people, off for relatively few - that's the nature of this kind of statistical estimate, because it has a small standard deviation). It's hard to say whether a difference observed in a treated hypothyroid person is because of the hypothyroidism, or something else.

    I agree that untreated hypothyroidism tends to result in a lower TDEE (all day calorie burn), through a variety of mechanisms, including fatigue, stiffness, depression, and more.

    I'd speculate that people who can't understand how those would lead to weight gain has not had much experience with that kind of symptom set, sometimes all at once; and especially has not experienced a pervasive, bone-wearying fatigue.

    But I also have read that research suggests the maximum "metabolic" down-regulation is 5% or less in untreated people (I'm using the term "metabolic" very loosely: What I mean is that hypothyroidism-fostered depression, for example, could lead to a bigger calorie-expenditure down-regulation if it resulted in the person wanting to sleep all the time, say.)

    I was diagnosed as hypothyroid about 6 months or so after completing 6 months of chemotherapy (for breast cancer). Chemotherapy, depending on the drugs needed, can have some of those same side effects (mine did). After chemo finished, I slowly began recovering energy as expected . . . then I hit a wall. I was dragging through life. I thought I would never feel strong, energetic, or normal again.

    While the fatigue was not as severe as during chemo, it was very impairing and dispiriting. That was almost 19 years ago. My hypothyroidism got diagnosed and properly treated (levothyroxine works for me). I'm now a more than averagely energetic 63-year old woman, feeling stronger and better than I did before chemo at age 44, despite the age increase.

    I'd add that not everyone experiences the same severity of hypothyroidism, nor the same manifestation of side effects. One would do well not to judge others; we don't know how it feels on the inside, to be them.

    I’m happy that treatment worked so well for you. To be clear though I wasn’t judging anyone. I was sharing my experience.

    For me I still have to eat less than other women my age, height, and activity level despite treatment. It’s not substantially less but enough that I’m aware. That isn’t good or bad - just my reality that once I accepted I was able to work with and reach my goals.
  • whoami67
    whoami67 Posts: 297 Member
    However hypothyroidism is very easy to check and very easy to treat.

    Once you are on adequate replacement, your equation is same as everyone else's

    No it isn't always easy to check and it isn't always easy to treat. Sometimes it is very, very difficult. Your thyroid might have been easy to treat, but not everyone's is.

  • Fuzzipeg
    Fuzzipeg Posts: 2,301 Member
    Paperpudding - I'm thrilled you had such good treatment regrettably many others including me have lifetimes of thyroid troubles which accumulate and cause a domino effect within our bodies.

    I totally agree with the modern thyroid testing everyone should have access to perfect treatment. I heard an interview with the doctor who researched for the first testing system. He stated the tests are being used incorrectly in the majority of health systems. Those of us with hypothyroid symptoms prior to the 1940's war or a little later to the 60's may be, would have been given animal thyroid tissue until the symptoms ceased, the people thrived. In the intervening years following the concept of testing big pharma hit on the idea of synthetic iodine and so levothyroxine was born and became the medicine of choice - it being cheep and only mostly for women.

    I do wonder if a comprehensive mineral and vitamin supplement would work as well if not better, designed to promote conversion t4 to t3 as long as the manufacturers were mindful of the fillers/binders. This is doubtful to help those who are genetically restricted or unable to convert t4 to t3, it happens, even in later life.

    I find it difficult to compute - our metabolism is only diminished by 5% when the symptoms can go on increasing year on year because the tests are not applied properly.

    Endocrine problems are not always straightforward in their treatment. To repeat myself Many including me react to the cheep treatment Levothyroxine.

    When low t3 - underlie many cancers because one of its rolls is to remove non regular cells.
    - underpin many respiratory conditions necessitating less appropriate treatment.
    - reduce growth hormone causing, arthritis and other stature related health issues
    - contribute to PCOS because t3 is tied into insulin production/use
    - be involved in diabetes similar to above
    - be involved in cholesterol production and elimination
    - have an essential role in immunity
    - underpins, infertility, reproduction
    - contributes to anorexia,
    - effects the brain as it uses more t3 than any other organ

    With 300 symptoms according to one site the list will go on and on. So while I rejoice for you, that your thyroid problems are resolved, my system screams for those who go untreated, inappropriately treated, who's symptoms are dismissed as - your female its what you should expect. Arthritis is often diagnosed 10/15 years before a diagnosed before hypothyroidism is diagnosed. Human growth hormone is the other effective thyroid hormone and lacking or being low in it is a contributory cause in arthritis.

    I really wish men had as many health related problems as women can with their endocrine systems if they did more research would have been carried out. It was said men had more heart issues than women but the range of heart medications available in Casualty will probably do nothing for a woman even if her different presentation of heart condition symptoms are recognised.

    So those who have early diagnosis, please celebrate and please do not berate others who have not been as fortunate as yourselves as being in someway lesser deserving beings as if the interpretation of our tests is laid at our doors.

    I was virtually house bound when I turned to alternative support to regain my health. I am healthier in my 70 year than I was at 50. I still do not breath deeply enough, muscle function needs to grow, breathing deeply, normally needs working on, it underpins all.
  • wendyheath32
    wendyheath32 Posts: 74 Member
    I have hypothyroid and I haven't gained weight and I've maintained. When it was at its peek I was eating loads of maintain my weight. Different for everyone
  • Pearl4686
    Pearl4686 Posts: 918 Member
    Seeing I've found a group of knowledgeable people, here's a question...
    I've been hypoththyroid for 8 years and always been stable on levothyroxine. Recently, I've developed tremors in my hands and sometimes heart palpitations (both only occasionally, but especially when skipping meals) I suspect I may be hypoglycemic and Dr Google me this is quite common with hypothyroidism. I feel totally fine and full of energy besides for that. I will obviously get checked out (although may take awhile to get an appointment- NHS!) but I'm curious if any of you have experienced this...
  • Pearl4686
    Pearl4686 Posts: 918 Member
    And forgot to add, I've been on MFP for about 6 months. Lost 20lbs the first 3 months but very little since then. Don't think that's related to any medical issues as I'm struggling to stay on plan. But who knows, maybe my hunger/energy/metabolism is affected...(thinking if excuses ;) )
  • spiriteagle99
    spiriteagle99 Posts: 3,743 Member
    edited May 2019
    For me, being unable to lose weight was my main symptom of hypothyroid, aside from thinning hair and no eyebrows. I mentioned it to my doctor and was told, "You're over 40, what do you expect?" It took about 3 years before a doctor paid attention and asked about my family history. My mother was also hypothyroid and on meds. I got tested, started meds, adjusted meds, adjusted meds again, and eventually got to the point where I could lose weight. At this point, my metabolism is, if anything, a bit higher than most women my age. But I also do more exercise than most. Afterburn is real.