I have to agree with the other readers. I have not had the band yet (3/27/09) and at a pre surgery seminar I was told by the nutritionist that you need to take a multi-vitamin daily as well as calcium and BIOTIN. This will prevent hair lost. I have a short cut and was not too worried about the hair lost, however my girl friend has long hair and she asked that question because the same thing happened to her when she was pregnant. So get these items and you should be okay, and if not call your doctor. GOOD LUCK!!!