Q. I take 20 mg of Prilosec each morning. Because it's primary effect is to shut down some of the acid produced, are less of the supplements absorbed?

A. Prilosec decreases acid production in the stomach almost to zero. This can lead to malabsorption of nutrients, some minerals in particular. Safer alternatives are preferable when possible. If Prilosec is necessary long-term, some nutrients will not absorb completely, but you will still absorb some.