Post Surgery 18 mos plus.......
how long do you malabsorb protein?
I know those pesty littlie vili in your intestines grow and adapt and the malabsorption decreases. I know the vitamin malabsorption is forever but the protein reabsorption..can that be measured? Is it why there is regain or bounceback?
Pre Rny I was on a very low protein diet for my kidneys. Now I eat about 70-80 gms/day.
Does anyone know?
Deb T.
Pre Rny I was on a very low protein diet for my kidneys. Now I eat about 70-80 gms/day.
Does anyone know?
Deb T.
Learned something new! I never really thought about what you didn't absorb! I knew the DSers didn't absorb fat but never knew for RNY! Is it just protein?
Kate
Highest 290, Banded - 248 Lowest 139 (too thin!). Comfort zone 155-165.
Happily banded since May 2006. Regain of 28lbs 2013-14. ALL GONE!
But some has returned! Up to 175, argh! Off we go again,
You malabsorb protein and fat-a certain percentage but I don't know how much. I know that DS'ers malabsorb fat at a higher rate. That's why they have such high fat soluble vitamin needs. When I was looking at surgeries one of the reason I didn't do the DS was because of the high fat malabsorption. The anti-rejection meds you need after kidney transplant are fat-soluble and I have to be able to make sure I can absorb that stuff!
For me it's been nice to be able to eat more protein. I've had years of low protein diet. I think further out I'm probably going to have to reduce the protein intake. I worry about eating more carbs and weight gain.
Deb T.
For me it's been nice to be able to eat more protein. I've had years of low protein diet. I think further out I'm probably going to have to reduce the protein intake. I worry about eating more carbs and weight gain.
Deb T.
I've never been able to find a study on the malabsorption of protein or complex carbs. (There is one on fats---more on that later.)
The current theory is that the body tries to heal itself from the 'insult' of the intestinal bypass by growing more villi. Just how successful it will be depends on both how much was bypassed, and how capable your individual body is at growing extra villi. Some people completely overcome the surgery, and don't malabsorb protein or carbs at all by about 24 months post-RNY. Other people are less able to overcome it, and will continue to have some malabsorption all their lives. There may be a way to test this---I just don't know.
What's typically 'blamed' for regain after the RNY is that at about two years post-op, malabsorption (of both protein and complex carbs) stops or decreases greatly, AND the patient finds she can eat much more than in the early post-op days. This is where 'learning good eating habits' is SUPPOSED to save you---personally, I haven't been there/done that, so I can't speak to whether that's true or not.
Fat is different, because fat canNOT be absorbed until it's been emulisifed by bile, which is diverted into the bilio-pancreatic limb. In the typical RNY, the BP limb is rather short, causing relatively little malabsorption of fat---the average one-year post-op RNYer absorbs 62% of dietary fat, compared with 92% for non-ops, and 19% for DSers.
I've seen, but don't recall, numbers about how what per centage RNYers malabsorb protein and complex carbs. For DSers, we use the numbers 50% of protein, 40% of complex carbs, and 80% of fats. Alas, everyone absorbs nearly 100% of simple carbs---absorption of them starts in the mouth!
The current theory is that the body tries to heal itself from the 'insult' of the intestinal bypass by growing more villi. Just how successful it will be depends on both how much was bypassed, and how capable your individual body is at growing extra villi. Some people completely overcome the surgery, and don't malabsorb protein or carbs at all by about 24 months post-RNY. Other people are less able to overcome it, and will continue to have some malabsorption all their lives. There may be a way to test this---I just don't know.
What's typically 'blamed' for regain after the RNY is that at about two years post-op, malabsorption (of both protein and complex carbs) stops or decreases greatly, AND the patient finds she can eat much more than in the early post-op days. This is where 'learning good eating habits' is SUPPOSED to save you---personally, I haven't been there/done that, so I can't speak to whether that's true or not.
Fat is different, because fat canNOT be absorbed until it's been emulisifed by bile, which is diverted into the bilio-pancreatic limb. In the typical RNY, the BP limb is rather short, causing relatively little malabsorption of fat---the average one-year post-op RNYer absorbs 62% of dietary fat, compared with 92% for non-ops, and 19% for DSers.
I've seen, but don't recall, numbers about how what per centage RNYers malabsorb protein and complex carbs. For DSers, we use the numbers 50% of protein, 40% of complex carbs, and 80% of fats. Alas, everyone absorbs nearly 100% of simple carbs---absorption of them starts in the mouth!
Thanks for all the information. I need to revisit my diet a little bit. I have reactive hypoglycemia and have been eating more protein. I got a call today from my renal doctor and my BUN is elevated. It could be from dehydration but it also may be from eating too much protein.
I think I'm going to look at reducing the protein a little and putting in more fat. Sometimes this makes my brain hurt!
Deb T.
I think I'm going to look at reducing the protein a little and putting in more fat. Sometimes this makes my brain hurt!
Deb T.
I've never heard about a test for protein, I believe protein first will be our mantra for life. I do know that we can now absorb every damn calorie like before :(, don't you wish your vitamin absorption came back not your calorie absorption, man that would be nice!
Edie
Edie
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Inflammatory Breast Cancer
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