I have a question????????
Simple carbs, like sugar and starch, start being absorbed in your mouth---so you will always absorb nearly 100% of them. Even DSers have to be mindful of what we eat---but we do have a lot more freedom than with the other forms of WLS. I eat a high-protein, high-fat, moderate-carb diet of around 2500-3000 calories a day.
A number of DSers on this board have reportedly put on weight or experienced rebound weight gain because they started eating refined/simple carbs. Once they stopped eating them or cut way down on them and started eating more protein and drinking more water, their weight either stabilized or started going downhill.
I eat complex carbs every day if there is still room in my real estate after eating protein first. I can lose weight eating complex carbs but gain weight eating refined/simple carbs because, like the others have mentioned here, the refined/simple carbs are absorbed 100 percent while the complex carbs are absorbed only 50 percent.
Vicki 
DS (lap) with Dr. Clifford Deveney. Cholecystectomy (lap) with Dr. Clifford Deveney 19 months post-op.
Has not weighed myself since 1/2010. Letting my clothes gauge my progress instead.
I have GERD, and at my consult, I was told that the DS would not cure the GERD, and might make it worse.
I will take the weight loss over GERD any day!
On Nexium for life, but over 200 pounds lost.
I rest my case.
By the way, I also had Barrett's Esophagus a couple years before my DS. That's when I first got the Nexium. Dr. Inman made it clear t me that the DS would not cure the GERD, and might make it worse. It did make it worse, and that is why I take my Nexium every day without fail! Otherwise " Girl On Fire" applies to me!
HW 405/SW 397/CW 138/GW 160 Do the research! Check the stats!
The DS is *THE* solution to Severe Morbid Obesity!
No I had the DS
I still have GERD, which for me flares up really bad when I forget to take my calcium. I discovered that totally by accident.
I take Rx Nexium (omeprazole) daily to control the GERD. so it's either calcium or omeprazole. I'm going to discuss this with my surgeon next month during my visit, so I can see if I can come off the omeprazole, at least for a trial period. Otherwise, it's for a lifetime. I'm also going to check with my PCP, in fact, I can check with her now, by e-mail. She's also a good friend, in addition to being my doctor. We're even the same age!
Now. there's been some debate on this board in a previous post that excess stomach acid has nothing to do with osteolysis (calcium leaching from bones), but I learned in my biology class that acid is the catalyst that starts that chemical process.
HW 405/SW 397/CW 138/GW 160 Do the research! Check the stats!
The DS is *THE* solution to Severe Morbid Obesity!
