Advices??

I will have a gastric bypass next July in Monterrey Mexico with Dr Roberto Rumbaurt, any advice before surgery?

Yes. Go to your profile, and enter your surgery type (RNY) and expected surgery date, your current BMI, and any other medical or diet history info you're comfortable sharing. The more we know about you, the better able we are to give you advice that applies to YOUR situation.

You need to research and understand all your options before committing to a specific surgery type. Can you tell us why you've chosen the RNY/gastric bypass over the VSG/Sleeve or the DS/duodenal switch? (I'm not challenging your decision---I'm trying to get you to think about WHY you made it. Sometimes explaining things to someone else helps us clarify our thinking.)