I am 6 days out from RNY and after every very low sugar protein shake I get sweaty an have diarrhea. This seems to be dumping to me but the shakes are less than 3 grams of sugar. Anyone else with problem ?

Could it be lactose intolerance?

As Smiley suggested this could be lactose intolerance. Have you tried any that are not made with milk? Something like Isopure?

Another thought:

How much of those shakes are you trying to drink at once?

In my program I wasn't able to move onto Protein shakes until week 2 or 3, but even then it was something like 4oz (liquid) for a meal.

The shakes I am using are 98% lactose free. My program advances from clear to full liquids after 3 days.

I have a lactose intolerance now - I can't handle anything other than shakes that are completely lactose free and I experience what you have. I wouldn't trust 98%. Give it a try and see how it goes.

Looks as if that's the problem! Thanks. Any suggestions on protein drinks ?

Isopure the only thing that doesn't make me ill im 3 weeks post.

Isopure is my savior.

Don't run out and buy a ton of isopure. Try it first. People love it or hate it. I hated it.

Hi, I'm 3 days post-op and i had unjury unflavored protein mixed with crystal light this morning... it was kind of hard to drink and now the thought of a protein drink makes me nauseaus... any one else experience this or have any advice? Thanks

Isopure cut in half with water and then flavored with water enhancers is ok. Once I was on full liquids I mixed the unflavored protein with strained cream of chicken soup. Just make sure it isn't over 140 degrees.