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What Percent of Excess Body Weight Loss is Normal on the Pre-Op Diet



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Hi everyone,

So I'm starting day 6/14 of the pre-op diet (which I've followed faithfully) and in the past five days I've lost around 11% of my excess body weight (13 pounds). Is this pretty normal? It feels weird but I don't know if I should contact my dietitian because I know some of this is Water weight.

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I believe I lost 16 pounds in the two week pre-op diet. I believe I was 337 before starting it and my surgery weight was 321 so... yeah, 16 pounds. Some people lose more, some lose less, but if you're worried then definitely call the dietician for peace of mind at the very least.

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Most of us here i have seen loose 10-18 in the two weeks. But be careful that is not going to be that way the whole time but that seems to be the average. I am male and lost 23 in 10 days but most of it was Water and shortly after surgery bounced up a few. Everyone is different so just do the best you can and stick to the plan and Journey

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You didn't state your starting weight, but regardless, it's pretty normal. And like the posters said above, its mostly Water weight.

Excited for you for starting this...it really is a game changer.

Good Luck!

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36 minutes ago, ms.sss said:

You didn't state your starting weight, but regardless, it's pretty normal. And like the posters said above, its mostly Water weight.

Excited for you for starting this...it really is a game changer.

Good Luck!

Oops, I did forget to give stats! SW 240 pounds CW 227, 5'6" , female, early 20s. :)

Thank you! I'm excited, I've always had difficulty keeping the weight off so I'm really looking forward to this. I was reading studies about the excess body weight reduction pre-surgery and I found one that said surgery complications for patients who lost 10+ percent of their excess body weight before surgery had a slightly higher risk of complications versus patients who lost 6-10 percent of their EBW but I think I'm worrying too much about this, haha

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2 minutes ago, andrastesgrace said:

Oops, I did forget to give stats! SW 240 pounds CW 227, 5'6" , female, early 20s. :)

Thank you! I'm excited, I've always had difficulty keeping the weight off so I'm really looking forward to this. I was reading studies about the excess body weight reduction pre-surgery and I found one that said surgery complications for patients who lost 10+ percent of their excess body weight before surgery had a slightly higher risk of complications versus patients who lost 6-10 percent of their EBW but I think I'm worrying too much about this, haha

Ya, I think you may be adding unnecessary worry on your plate, lol! (But it get it, change and the unknown can be anxiety-inducing).

Stay the course, keep your eye on the prize and do the honest best you can do...its totally worth it. ❤️

Complications may or not be in your future, but I figure its better to leave the worry on those if they actually happen.

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Well I personally started my own pre-op diet like 2 months early and had lost 65lbs before surgery day my surgeon said that's good because it makes surgery safer and recovery easier basically any pounds you can lose on your own definitely helps..

Now I'm below my goal weight and loving Life.

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I think it completely depends on the person. I know that every thought I had was about getting as much off as possible prior to surgery. I don't think you need to contact the dietitian unless you were loosing nothing. Your moving in the right direction good luck to you !! Your on an incredible journey but it is all worth it!!

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maybe 15 lbs? I was around 330 before I started the two-week diet, and 315 the morning I was rolled into surgery. So about 5% of my weight. But I lost quite a bit of weight prior to that, so I'd probably lost a lot of Water weight even before then.

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    • Alisa_S

      On day 4 of the 2 week liquid pre-op diet. Surgery scheduled for June 11th.
      Soooo I am coming to a realization
      of something and I'm not sure what to do about it. For years the only thing I've enjoyed is eating. We rarely do anything or go anywhere and if we do it always includes food. Family comes over? Big family dinner! Go camping? Food! Take a short ride or trip? Food! Holiday? Food! Go out of town for a Dr appointment? Food! When we go to a new town we don't look for any attractions, we look for restaurants we haven't been to. Heck, I look forward to getting off work because that means it's almost supper time. Now that I'm drinking these pre-op shakes for breakfast, lunch, and supper I have nothing to look forward to.  And once I have surgery on June 11th it'll be more of the same shakes. Even after pureed stage, soft food stage, and finally regular food stage, it's going to be a drastic change for the rest of my life. I'm giving up the one thing that really brings me joy. Eating. How do you cope with that? What do you do to fill that void? Wow. Now I'm sad.
      · 1 reply
      1. LeighaTR

        I hope your surgery on Wednesday goes well. You will be able to do all sorts of new things as you find your new normal after surgery. I don't know this from experience yet, but I am seeing a lot of positive things from people who have had it done. Best of luck!

    • Alisa_S

      On day 4 of the 2 week liquid pre-op diet. Surgery scheduled for June 11th.
      Soooo I am coming to a realization
      of something and I'm not sure what to do about it. For years the only thing I've enjoyed is eating. We rarely do anything or go anywhere and if we do it always includes food. Family comes over? Big family dinner! Go camping? Food! Take a short ride or trip? Food! Holiday? Food! Go out of town for a Dr appointment? Food! When we go to a new town we don't look for any attractions, we look for restaurants we haven't been to. Heck, I look forward to getting off work because that means it's almost supper time. Now that I'm drinking these pre-op shakes for breakfast, lunch, and supper I have nothing to look forward to.  And once I have surgery on June 11th it'll be more of the same shakes. Even after pureed stage, soft food stage, and finally regular food stage, it's going to be a drastic change for the rest of my life. I'm giving up the one thing that really brings me joy. Eating. How do you cope with that? What do you do to fill that void? Wow. Now I'm sad.
      · 1 reply
      1. summerseeker

        Life as a big person had limited my life to what I knew I could manage to do each day. That was eat. I hadn't anything else to look forward to. So my eating choices were the best I could dream up. I planned the cooking in managable lots in my head and filled my day with and around it.

        Now I have a whole new big, bigger, biggest, best days ever. I am out there with those skinny people doing stuff i could never have dreamt of. Food is now an after thought. It doesn't consume my day. I still enjoy the good home cooked food but I eat smaller portions. I leave food on my plate when I am full. I can no longer hear my mother's voice saying eat it all up, ther are starving children in Africa who would want that!

        I still cook for family feasts, I love cooking. I still do holidays but I have changed from the All inclusive drinking and eating everything everyday kind to Self catering accommodation. This gives me the choice of cooking or eating out as I choose. I rarely drink anymore as I usually travel alone now and I feel I need to keep aware of my surroundings.

        I don't know at what point my life expanded, was it when I lost 100 pounds? Was it when I left my walking stick at home ? Was it when I said yes to an outing instead of finding an excuse to stay home ? i look back at my last five years and wonder how loosing weight has made such a difference. Be ready to amaze yourself.

        BTW, the liquid diet sucks, one more day and you are over the worst. You can do it.

    • CaseyP1011

      Officially here for a long time, not just a good time💪
      · 0 replies
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