I began low carbing in June 05, my hair has been falling out since the end of October and my doctor did thryoid levels to see if that was the cause and it was not. She told me that the hair loss would probably end in 3-6 months. I have begun taking biotin and cod liver oil in addition to my other supplements. I will see the doctor next month and if the hair loss continues I will have her run a battery of labs to see if I am deficent in something.