A nurse is teaching a client who is to start taking phenelzine for major depressive disorder. Which of the following foods should the nurse teach the client to avoid consuming while taking this medication?

A. Cheddar cheese: Cheddar and other aged cheeses contain high levels of tyramine, which can precipitate a hypertensive crisis when consumed by clients taking MAOIs like phenelzine. Avoiding aged cheeses is critical to prevent severe cardiovascular complications. B. Bananas: Fresh bananas contain low levels of tyramine and are generally safe to consume in moderation while taking MAOIs. Only overripe bananas with high tyramine content should be limited, but this is less of a concern than aged cheeses. C. Chicken: Fresh chicken does not contain significant tyramine and is safe to include in the diet while taking phenelzine. Properly cooked and stored poultry does not pose a risk for hypertensive crisis. D. Peanut butter: Peanut butter contains minimal tyramine and is considered safe for clients on MAOIs. Only improperly stored or aged peanut products might pose a slight risk, making it much less critical than avoiding aged cheeses.