That doesn't mean that more is better, however. Excess of some vitamins can cause problems ... high blood levels of calcium ...

One downside of this multivitamin is that it doesn’t offer much calcium — the dose ... which he switched to after experiencing nausea with a capsule multivitamin. DeRemer’s goals in taking ...

Like most supplements, vitamin B complex can cause side effects, depending on the dose and type of vitamin B. Find a list of ...