I believe the placebo effect works. This has been proven over and over with medicines and surgery. This article has scientific/study references that show supplements and vitamins are a waste of money. If you believe they work, there is credibility to their effectiveness. I do not take vitamins or supplements because personally, I agree with this Dr. and the proof provided.
https://www.medscape.com/viewarticle/915337
https://www.medscape.com/viewarticle/915337
Last edited: