Diet and Vitamin Supplements to promote hair growth after an FUE?

If you get a well balanced diet, the chances are excellent that you are getting everything you need to support the health and well being of your procedure.  There are some things to consider.  Make you you get biotin in your diet.  Silica is also important.  Iron is important because you do not want to produce an iron deficient anemia.  This is not common in men unless something more severe is going on.  Vitamin D is also important.  Sometimes we are deficient in our vitamins and we don't know it unless we test for them.  Therefore, a good B-complex and Vitamin D3 can be beneficial following a hair transplant.  Finally, it is important to avoid crash diets.  I've seen individuals who had their stomach stapled or banded and this caused much of their transplant hair to fall out because they had protein wasting and a far too aggressive form of weight loss.  

No Diet or Vitamins can help with FUE (only a good surgeon can).  There are no post operative supplements you can take or to avoid after FUE.  

I recommend to my patient to take Biotin, multivitamin and finasteride to help the transplanted hair to be thicker while they’re growing.PRP is also recommended.

Actually, you don’t require any medicine to grow your transplanted hair. It is always advisable to have a really balanced diet, which most of the times is not possible. So I recommend you to look at some supplements that covers Anti-oxidants, Biotin, Vitamin D, Iron, Vitamin B & proteins in amounts required for hair growth. Further you should also be careful about crash dieting to lose weight etc. Further, Minoxidil & finasteride should also be given in planned manner to help the growth further.

There is no specific food supplement or vitamin that promotes hair growth after a hair transplant. In a healthy individual who has a balanced diet, hairs will find enough food, vitamins and minerals to grow healthily. The only good thing you can do is use finasteride and or minoxidil which are medications that protect against future male pattern hair loss and improve the caliber of partially miniaturised hairs.

Some people do say starting biotin or b-complex helps. We do this also, but we make it clear that it wont hurt you although the sceince behind it helping is not very strong. 

There are no specific foods or vitamins that have any scientific basis to promote hair growth after FUE.  None.

No, there is nothing you need to take after a hair transplant other than the drug finasteride to prevent hair loss if you are under 35 years old

It is not require to take vitamins, however You can use vitamins as it is a good idea to have good nutrition to keep your hair healthy.