Out of curiosity has anybody found any real results to dietary / nutritional supplements? I'm not completely uneducated towards the matter, I'm just not sure I subscribe to the stigma that they would be any better then just exercising regularly and naturally and just eating a fresh healthy diet?

Not to sound like a tree hugging hippie here, I'm just wondering if there has been any genuine trials, ie performing the same or a similar (as to not get diminished returns) routine on and off supplements that haven't been sponsored by corporate conglomerates...