Vitamins were discovered at the same time as penicillin in the 1930’s. They are as effective in most cases BUT do not have the side effects of destroying your gut microbiota.
You want and need to know about them. Here is THE one stop website about them with all the links and footnotes to the thousands of medical studies proving they are effective, their only drawback? Big Pharma cannot patent them so they could bill you more.
And How About Innovation In Nutrition?
Here is the best summary I could find out just for you.