Hello tonight. almost 1 week post op. feeling very good tonight. i had two 4 oz protein shakes today for a total of 40 grams of protein. they do make a difference in the way you feel. i start getting really shaky and weak feeling right before i know that i need to drink one. FOr all the ones that have not had your surgery be sure to get you some meal replacement powder or whatever you think you can stomach!! believe me it helps!