What are the side effects of multivitamins?

Asked by Cruz Orozco

Many multivitamin products also contain minerals such as calcium, iron, magnesium, potassium, and zinc. Minerals (especially taken in large doses) can cause side effects such as tooth staining, increased urination, stomach bleeding, uneven heart rate, confusion, and muscle weakness or limp feeling.

Andy Dale, BA Contributor
Andy Dale
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