30 Minutes Before and after drinking?

Why is that? Why must we wait 30 minutes before and after a meal? I always mean to ask my surgeon but constantly forget. Thanks!

Hi,

My doc said it is to keep from washing down a meal so your body/brain can feel more satisfied.

 That is what my doctor told me as well.  It allows the food to stay longer in the pouch.  If you are constantly washing down your food, this could also lead to over eating.

i was told that the liquid will turn the food into a sludge that will just pass through your system faster. you will get hungry sooner than if you wait to drink before/after meals

I didn't know the reason. But for me, I can not drink for two hours after i eat soft foods or everything  will come right back up.