“I’m not a doctor.
I suffered from COVID and (assumed) flu recently. A friend mentioned that these pack a hell of a lot more of your RDA in vitamins than other products, so I took these on both occasions and I could feel a difference.
I say it made a difference because I caught COVID at the same time as someone else (colleague of similar age etc) and again with flu (wife also of similar age) and both the other two suffered for longer than I did even though my immune system is normally weaker than a wet tissue.”