Fagin some don t subscribe to the healthy diet theory but I would say from my own general life experience to keep doing what you are doing and if the hair growth is faster great. If not you are doing something that I would consider to be very positive.
Personally I prefer sulfur from food as opposed to powdered MSM. Foods like eggs, garlic, fermented cruciferous vegetables etc.
I read a recent headline where increased vitamin intake might increase cancer in the body and I believe that could very well be true. Synthetic forms of vitamins are not what the body works well with and vitamins through food seem to be optimal at least that has been my experience.
You are one step ahead already as when you look in the mirror you seem to be smiling............