Mulan:
I was reared in the "typical" JW environment which included every health food/supplement moneymaking scheme that came along over a several decade period. At one point in my life, I was taking over 40 tablets/capsules of various "crap" per day. After I finally wised up, I haven't taken any supplements in years. Not even VitC. I just drink OJ daily.
Over the years, I personally know of several JW females who were started into health foods/supplements by other JWs who eventually turned into hypochondriacs to the point of required psychiatric confinement.
As for chiropracters, I agree that most of the old guys were as you describe your father. However, 90% of the ones who have graduated in the past 2 decades are nothing but con artists who present themselves as being able to treat anything and everything using spinal manipulation. I have so many stories to relate, ....
The straw that broke the camel's back for me with chiros happen several years ago when I suffered a low back injury. I had previously visited chiros off and on for decades for minor adjustment needs. Therefore, I did not even consider a MD fr this injury. I tried 5 different chiros over a 18 month period with only temporary relief for a few weeks, with the problem ten reoccurring. The last chiro I saw treated me for 2 months with me finally reaching the point of not even being able to get out of bed. Finally, this chiro broke SOP, and told me to go see an MD. I fully thought that he was suggesting surgery. I made an appointment with a specialist and took along my xrays, which te MD barely glanced at. He prescribed high strength muscle relaxers and anti-inflamatories for 2 weeks, and told me to come back if my 18 month old problem had not cleared up by the time the prescriptions ran out. I did not have to go back. For me to have spent thousands of dollars and lived in pain for 18 months, I think those chiros are criminals.
I learned that one of the main reasons vertebrae get out of alignment is due to problems/trauma with back muscles, which MUST be treated with chemicals. Until those muscle problems are solved, the muscles will continue to pull/push the vertebrae. I also learned that a good night's rest will lead to relaxation of back muscles which will allow the back to adjust itself.
My guess is that 80% of chiro treatments are useless, if not counter-productive. That figure is likey true of health foods/supplements.
As I indicated in my first post, the same personality that is susceptible to "religion scam" is also susceptible to "Health scam". Due to the weight that elders/elderettes carry amongst the "friends", the r&f are easy targets for scams-especially those that are not easily proven.