My stylist swears that if you get enough protein you won't lose hair. She also advises biotin. I haven't lost much hair, and started out with extra thick hair so it would be hard to notice. I have seen plenty of people that do everything right, protein and vitamins and biotin and still lose hair. I think you are either lucky or you are not. I would do all of the preventive measures anyway so you will know you have done all that you can if it dose start to thin out. I have never seen anybody say that they would prefer keeping the fat to keep their hair. The weight loss and healthier life always seems to be worth it, and one of my friends who started out with very thin hair just bought a gorgeous wig! I started biotin within the first week or so post-op.
putting one foot in front of the other...