Also please be careful with drug interactions. While most vitamins are fine, there are a lot of interactions between pain meds, anti-depressants etc and herbal medications. You need to talk to a person knowledgable about supplements and medications to make sure there are no surprises. I have had issues form some things in detox (cleansing) pills. Also, when you take Effexor or Wellbutrin you cannot take glucosamine. It limits the effectiveness of the anti-deppressant.
I also find flax seed, and grape seed oil helpful.