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Wondering why you hit a plateau or regain at about 2-3 weeks post-op? My theory:
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This is by far the most common query that newbie bandsters have. I had it and didn't know the answer at the time. I've spent a lot of time thinking about it and asked my doctor about it, and I think this is a sound explanation for what is going on inside of you. Don't let it get to you - it IS temporary! Most of all, don't let it cause you to give up!!
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It is highly likely that you will hit a plateau or regain a few pounds in in the weeks after the op. My theory on this is:
* In the pre-op weeks, we saw big numbers as weight loss because we had switched from a solid to a liquid diet and most of the loss was not fat but simply emptying the digestive system. At any point in time on a normal eating regime, an average person will have 10-15lb of food in various stages of digestion in their alimentary canal. Us fatties probably had 20+! Real fat loss at that stage is probably only 2-5lb, the rest is fluids and undigested food. However, we believe the big numbers and get disappointed when they don't continue.
* During the operation, they put you on an IV saline drip, which boosts your Fluid levels and Water weighs MUCH more than fat. This can take several days to a couple of weeks to get out of your system (see next point).
* The internal swelling from the operation all contributes to fluid retention, which is boosted by the IV drip. Until the swelling goes down, you're going to hold onto that fluid.
* As the swelling goes down, you start to move from liquids to mushies to solids. You will probably notice that you don't poop for quite some time post-op, which is a combination of the constipation-causing painkillers, the fact that you are eating MUCH less in volume, and that you are now re-filling your digestive system from it's previously completely empty state. This means that as you lose fluid weight, you are regaining solid food weight, and all the actual fat loss is disguised by those two. Some people will retain more fluid, especially if they're eating salty canned Soups (I know I did!), so they will see a gain. Others will lose more fluid than they are gaining in food weight, so they will see a slight loss. For others it will be equal or will go up and down day by day.
In the meantime, in the background, I believe that if we stick to the diet plans, we are still losing real fat at the steady rate of 2-3lb a week - we just can't see it and judge it accurately because there are too many other influences. Once you get back to solid foods, a "normally full" digestive tract and get rid of the extra fluids, your scales will be much more accurate and should be showing a steady loss of 1-2lb per week.