Hi to all,
This is something I saved off the web awhile ago. And I believe absolutely that it remains to be true. Run it past your surgeon if possible. But it makes LOADS of sense to me!
The rate of absorption/malabsorption depends on how much of your intestines is bypassed. Also, most of the important nutrients such as vitamins and minerals are absorbed in the bypassed intestines, so this is an issue with all GBS patients.
That's why you need to take vitamins and minerals as supplements for life.
So, it's best to follow your intake and output with a system that has been developed with the bypass surgery in mind, not the conventional diets that are geared for those who haven't had surgery.
That said, the rate of absorption also changes--our bodies are miraculous when it comes to "recovery", while you are early out, the rate will be true to the area bypassed, but as time passes, and the years go by, the remaining intestines will "recover" some of the loss, so you will absorb more than immediately after surgery. However, most since vitamins and minerals need special enzymes and agents to be absorbed and utilized that are are produced mainly in the lower portion of the stomach and the duodenum, this malabsorption will basically remain the same for life. It's the absorption of protein, fat and carbs that recovers, though not completely.
Cheers