I have worked in the medical field and home with my daughter right now with some medical issues. A nurse I worked with reminded me to place my vitamin or supplement in a small amount of vinegar. Put just enough to cover it (this is similar to the acid content in your stomach). Check it an hour or so later to see if it has started breaking down. Hopefully, it has by then. There are some vitamins like One A Day that does not even really break down at all! It is a simple test that can tell you if the supplement will break down enough to gain any benefits from it in the body.