Gastric Sleeve or Bypass in Gastric Sleeve Surgery Forums Posted January 31, 2014 I chose the sleeve but I wanted the bypass because the weight loss is so fast. I had about 120 pounds to lose. My doc's opinion was the I didn't meet his qualifications for bypass but if I chose it, he would do it. I talked to my friend who had the bypass and asked her opinion and she recommended the sleeve. I did worry about the lack of absorption of nutrients and that was my main reason for choosing the sleeve., That's her main reason why she recommended sleeve too. I am very happy with my choice. Best of luck to you!