@itsmeagain @ Cleveland26 all Vitamins, Herbs, and anything that is not FDA regulated is a gamble.

There is nothing to back up the claims of anything, like a multivitamin, or mineral supplement, or herbal supplements. The manufacturer can put whatever in the pill or capsule and make a claim about it being a wonder pill.
Many years ago I worked for a Vitamin Supplement Manufacturer. I was in charge of buying all the ingredients, the empty capsules, glass bottles, caps, and the little pieces of “cotton”, really rayon, on the top.
I bought powdered vitamins from the least expensive supplier. I knew what was in our capsules and pills, but the customer didn’t.

Don’t fall for the, “Doctor (whoever) recommends this product and it’s helped 1000s of their patients…”
.Many times the doctor owns all or part of the company that is making the product.

You just don’t know, but if you stick to a well known brand you will probably do well.