“Systematic reviews of controlled clinical studies of treatments used by chiropractors have found no evidence that chiropractic manipulation is effective, with the possible exception of treatment for back pain.[8] A 2011 critical evaluation of 45 systematic reviews concluded that the data included in the study “fail[ed] to demonstrate convincingly that spinal manipulation is an effective intervention for any condition.”[10] Spinal manipulation may be cost-effective for sub-acute or chronic low back pain, but the results for acute low back pain were insufficient.[11] No compelling evidence exists to indicate that maintenance chiropractic care adequately prevents symptoms or diseases.[12]”
They get paid a lot less per hour, have less support staff, and less equipment. Hence any given unit of time they spend with you costs less. Additionally you have more options of which to choose.
Been to a doc recently? Think of how fast they try to get you out of the room. Feels like you are begging them to please listen to you. Well a chiropractor can spend the time talking to a patient. Of course you feel better, someone heard you complain for over 30 seconds and really listened to you. And if you weren’t listened to you, you just go find another one.
Feeling listened to doesn’t mean the same thing as treatment.