Jump to content
×
Are you looking for the BariatricPal Store? Go now!

How Much Does BMR Drop After surgery



Recommended Posts

With the sometimes significant loss of tissue That accompanies bariatric surgery, it only makes logical sense that BMR would drop. There is simply less tissue metabolizing nutrients to stay alive.

But is there a systemic/hormonal drop in BMR on top of that more mechanical one?
Is that why caloric needs for Bariatric patients seems to be relatively lower than the general population?

I am a large man even after weight loss, 6 foot one and 230 pounds. Yet my body fat percentage is 19% which is just barely within the normal range. I have very high muscle mass. So according to the inbody analyses I have had done at my local YMCA, my BMR alone based on muscle mass is close to 2600 calories a day. But then I am also super active on top of that, I exercise hard and regularly, and according to the standard model of 1 mile running equals 100 cal burned, it would seem that I would be burning another 500 to 1000 cal a day on top of BMR.
But then when I see my dietitian she says my goal should be under 1500 cal of intake. Generally I am under 2000 for sure. And all my food is good quality non processed, Protein centric, etc.

All of this, and my weight has stayed within 5 pounds for two years. It would seem if the math were as simple as it sounds, I should be losing a lot of weight still. But something seems to be happening metabolically.

Does anyone have any knowledge about what percentage of standard BMR having had bariatric surgery reduces?

Share this post


Link to post
Share on other sites

2 hours ago, wwboy said:

With the sometimes significant loss of tissue That accompanies bariatric surgery, it only makes logical sense that BMR would drop. There is simply less tissue metabolizing nutrients to stay alive.

But is there a systemic/hormonal drop in BMR on top of that more mechanical one?
Is that why caloric needs for Bariatric patients seems to be relatively lower than the general population?

I am a large man even after weight loss, 6 foot one and 230 pounds. Yet my body fat percentage is 19% which is just barely within the normal range. I have very high muscle mass. So according to the inbody analyses I have had done at my local YMCA, my BMR alone based on muscle mass is close to 2600 calories a day. But then I am also super active on top of that, I exercise hard and regularly, and according to the standard model of 1 mile running equals 100 cal burned, it would seem that I would be burning another 500 to 1000 cal a day on top of BMR.
But then when I see my dietitian she says my goal should be under 1500 cal of intake. Generally I am under 2000 for sure. And all my food is good quality non processed, Protein centric, etc.

All of this, and my weight has stayed within 5 pounds for two years. It would seem if the math were as simple as it sounds, I should be losing a lot of weight still. But something seems to be happening metabolically.

Does anyone have any knowledge about what percentage of standard BMR having had bariatric surgery reduces?

BMR is weight and age sensitive, I'm pretty sure it doesn't change just from having the surgery, it's the weight loss that changes the BMR total.

https://bariatricsurgeryco.org/bariatric-surgery-information/bmi-calculators/bmr-us-basic-metabolic-rate/

Something lots of folks miss is the Water, the human body requires water to not only work it's normal day to day processes, but for fat removal as well, if we don't give the body enough water to meet it's needs and then extra for the fat reduction, fat processing suffers.

Share this post


Link to post
Share on other sites

I get BMR and it also confuses me. I know what it is, I know (mostly) how it works, it was covered in a nutrition class I took in college but sometimes it doesn't make sense to me. With my weight/height/age/gender my BMR should be roughly 1765, I eat less than 1000 calories, and I exercise about an hour a day. I've been drinking about 80 ounces of Water but I'm not really losing much, only a few pounds a month lately. I can't see how I can physically fit more water in. I'm technically 4.5 months out, 67 pounds down. I need to re-do my measurements again. But I've lost 35 inches

Share this post


Link to post
Share on other sites

So - I'm 2 years out and just had a resting metabolic assessment today (which is used to calculate BMR). I'm half the person I was when I started this journey. But keep in mind, most times my resting heart rate is in the mid 40s. My body fat is around 30% which is pretty darn good for a post-menopausal woman who has had two kids.

I also know that I have always had a slow metabolism. I was a competitive athlete in my teens and even with training 4-5 hours a day, I needed to stay under 2500 calories to make weight. (I was an ice dancer - if I went over 125, my partner would drop me.)

Told my nutrition coach this prior to the test and he didn't believe me. Preliminary results are that I need 1100 calories to keep the lights on - which is what I have been eating. Occasionally, I'll lose a pound here and there, but at this point I'm more concerned with replacing fat with muscle.

The research I've read indicates that for men, age is the single greatest factor to decreasing BMR and it goes down with each year once you reach about 30.

Share this post


Link to post
Share on other sites

2 hours ago, Diana_in_Philly said:

So - I'm 2 years out and just had a resting metabolic assessment today (which is used to calculate BMR). I'm half the person I was when I started this journey. But keep in mind, most times my resting heart rate is in the mid 40s. My body fat is around 30% which is pretty darn good for a post-menopausal woman who has had two kids.

I also know that I have always had a slow metabolism. I was a competitive athlete in my teens and even with training 4-5 hours a day, I needed to stay under 2500 calories to make weight. (I was an ice dancer - if I went over 125, my partner would drop me.)

Told my nutrition coach this prior to the test and he didn't believe me. Preliminary results are that I need 1100 calories to keep the lights on - which is what I have been eating. Occasionally, I'll lose a pound here and there, but at this point I'm more concerned with replacing fat with muscle.

The research I've read indicates that for men, age is the single greatest factor to decreasing BMR and it goes down with each year once you reach about 30.

That's an awesome body fat percentage for any age for a woman! My resting heart rate is low to mid 50s, I'm approaching 40.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Recent Topics

  • Most popular:

  • Recent Status Updates

    • Krestel

      Psyllium husk is the sh*t! No really, it's my new go to for fiber in order to get regular. The nice thing is that it doesnt taste and is low in calories, so it's great for my shakes. It isn't expensive either and available in most grocery stores. Looking back on the forums, it seems to be FluffyChix favorite as well. 
      · 1 reply
      1. Rubenden

        https://beautifulpussy.pro/

    • Fairytail

      I had gastric sleeve surgery 5 years ago. My gastric reflux has recently got so bad that's the acid burns into my ears. I was given a lidocaine solution that would help with the burning pain in my throat. I spoke to my gastroenterologist about a procedure I saw online for the reflux.  She said I didn't qualify so I went to see the doctor that did this procedure who happens to be a bariatric doctor. He explained why I was not good for the procedure because I had a stricture in the esophagus a hiatal hernia. Due to the gastric sleeve the acid is being forced up into my throat. The doctor wants to do a bypass which should relieve that pressure. I am going for an upper GI tomorrow.  I was wondering if anyone else as experienced this. I am new here I do not go on social media so I don't know my way around I will try to find my way back here.
      · 1 reply
      1. Orchids&Dragons

        I was revised from a sleeve to a bypass 10 months out from my sleeve. I was waking up with acid in my mouth and burning the back of my nose. The bypass worked beautifully in eliminating the reflux. Oh, and to get back here, just google bariatricpal forums!

    • kdgarcia

      Surgery Next Tuesday!!!!!
      · 0 replies
      1. This update has no replies.
    • SabrinaGoddess

      Hide and Seek? No....   If you have noticed, it’s been a little bit of stretch between posts. It’s not because I am not interested in blogging. I absolutely love sharing my journey with you.   You see, my world has changed! I now exercise every single morning with a 3 to 4-mile walk. I also now meal prep so I don’t fall into old habits.   I am also a bit hooked on closing my Apple Watch Fitness Rings! In fact, I am obsessed with doubling and tripling most of them.   So this does take up a lot of time and by the time you add work into the mix and family time, it becomes a shorter day.   Priorities are in order for me and I could not be happier.   So in the last week, I’ve been hitting goals that I never thought I would be able to hit again. I weigh myself on Sunday’s now. It’s just easier to do before I get dressed for church. It just feels good. I refuse to constantly get on the scale when I see everyday victories. Like getting back into clothes I never thought I could, or taking the time to just breathe and be grateful for the blessings I have in my life right now.   Continued on www.SabrinaGoddess.com
      · 0 replies
      1. This update has no replies.
    • MissPennyP

      I’m confused 
      · 5 replies
      1. Orgasetiree

        https://eggharborfesthaus.com/desert-kitchen-nm.html

      2. JeffreyAlare

        https://mbig.com.ua/

      3. JeffreyAlare

        https://mbig.com.ua/

      4. Jameszew

        http://www.studiomerliniortodonzia.it/cgi-bin/bentelan.htm

      5. BrandonGep

        https://kinogo2.by/

  • Trending Topics

  • Together, we have lost...
      lbs
    ×