I take vitamins, and Omegas, etc. I think the "oils" (my nickname for them) such as Omegas, Borage oil, flaxseed oil, evening primrose, are all great and help so many parts of the body.
My former pdoc and psychologist suggested I take vitamins/minerals, as well as the "oils", even while being on my meds.
It is good to check with the prescribing pdoc if there will be no med interactions. For example, thyroid meds. suggest you do not take your vitamins/minerals until about 4 hours before or after taking the med. magnesium and a few others (I can't remember) will reduce the thyroid med's efficacy.
Vitamin B's, B6 and B12 are good for the nervous system,maintenance and growth of tissue.
Many benefits can be found in such supplements.