Hi Ladies, I havent had the op yet but hairloss is a common side effect of rapid weight loss on any diet - not just post surgery. After losing 4 stones on CD in 2007 I started to shed lots of hair, but it wasnt noticeable to anyone but me, and soon started to grow back.
As for vitamin deficiencies, im sure someone will correct me if I am wrong, but I think this only applies to bypass not band. As your intestine is the part of your body that absorbs all the nutrients from your food, and it is shortened during the bypass your body is not able to get all the nutrients it needs. Thats why you will have to take vitamins and other meds for life after bypass.
hope that makes sense