 [ Symptoms ] why am i losing my hair after weight loss surgery and how do i stop it  i take biotin 7500mcg b complex vitamin a zinc and vitamin d supplements daily but my hair just falls out in handfuls i prefer not to wear a wig so any help would be appreciated [ Disease ] this could be nutritional and a lack of protein could be contributing it sounds like the nutritional supplements you are taking contain vitamins and minerals that can help with hair growth however after weight loss surgery a lack of protein in the diet can contribute to hair loss you need to talk to your doctor to determine the best ways for you to get more protein    and to determine if that might be the cause you should eat a variety of types of protein including meat beans eggs rice etc