Weetabix:
The link you sent treats the food supplement as a drug. As a drug it does not have extensive drug testing results nor is it required to.
The medical establishment throughout the world injected billions of people with an unproven mystery substance that has harmed a significant proportion of them. Therefore it's fair to treat all medical people with caution, not just the NHS.
You advocate caution with advice yet you boldly urge him to see a doctor. It's a good job he is responsible for his own decisions.
My guy ... anything you take for health purposes has medicinal properties. Multi-vitamines, herbs, bacteria cultures, fruits, bark, mushrooms, etc. Do you know what a drug is? It's any substance that has a physiological effect when ingested or otherwise introduced into the body.
Even table salt, the stuff you put in food to make it taste good, can be a drug.
Sure, a supplement isn't beholden to the same vigerous testing as prescription medications, but they are still drugs.
Also, there's so many fields of medicine that do not focus on traditional western medication. Homeopathy, Aruvedic, Chinese, etc etc. They tend to recommend things like herb blends, teas, and supplements to treat a variety of ailments. But guess what? They are still drugs. And no amount of disdain for pills will change that.
I don't care if you are terrified of doctors. I have my opinions on your views, but I don't care because I'm not responsible for you. That said, it's extremely irresponsible to push than on someone else.
I'm not saying you should blindly trust doctors. I've seen a number of doctors accidentally and willfully harm patients. But I've seen even more doctors save and improve lives. Hell, if my mother thought the way you do, I'd have died of anaphylaxis within one week of birth. Forget all the other brushes of death I've had since then.
The best thing to do is research your doctor, educate yourself on your body, and get a second opinion as needed. Of course taking care of yourself is a must. But the average person had limited resources and education in most circumstances. Sometimes, it's a good idea to get help from the professionals.