How much mal-absorption is there with a proximal RNY?

If your intake is 1000 calories, how many calories to you actually absorb after a very proximal RNY? And if there is no calories mal-absorbed, whay not just have a VGB (although it's too late for me, I had my RNY 5 weeks ago). My doctor (not my bariatic surgeon) suggested about 60% of the calories are lost??? Has anyone else heard this??

We greatly appreciate your interest in helping us build our Q&A database. To discourage vandals from posting garbage, however, we require people to register before posting.

You must be logged in to post an answer. Click here to log in.