independent of any adjustment. You just as well could have drank pickle juice and attributed it to that.
For example, colds last ~4-5 days. Man is sick for 3 days, decides to drink airborne with all its magical vitamin C and what not. Miraculously, or so he thinks, but not unexpectedly, his cold starts to improve. He then swears by airborne. Takes it any time he has a cold and tells everyone he meets about it. Airborne creator gets rich without actually doing anything to improve his disease. The end of example.
I like that people feel better and am a proponent of those things. I also love science and unfortunately these ideals clash often when people refer to chiro, acupuncture, supplement, oils, etc.