I just took a closer look at some supplements I'm taking. The B Complex contains wheat and the Selenium contains corn starch. I don't know if I have a wheat sensitivity, but I have been told that it might be something to stay away from. As for the corn starch, I don't know why I would want this added to my daily intake. Anyway, it is interesting to see what is in there. I assumed it must be okay because I got it at a health food store. But maybe not. Maybe I need to shop at an extra-healthy food store.