A nurse is teaching a client who has a new prescription for an MAOI. Which of the following foods is contraindicated with this medication?

A) Potatoes: Potatoes are generally safe to consume while taking an MAOI. They do not contain significant amounts of tyramine, which is the substance that can interact dangerously with MAO inhibitors. Thus, they are not contraindicated. B) Grapefruit: While grapefruit can interact with various medications by affecting liver enzymes, it is not specifically contraindicated with MAOIs. The main concern with MAOIs relates to tyramine-containing foods rather than grapefruit. C) Cheese: Certain types of cheese, particularly aged cheeses, contain high levels of tyramine. Consuming tyramine while on an MAOI can lead to hypertensive crises, which are potentially life-threatening. Therefore, cheese is contraindicated for clients taking MAOIs, making it crucial for clients to avoid these foods. D) Eggs: Eggs are considered safe for consumption with MAOIs, as they do not contain tyramine. They do not pose the same risk as high-tyramine foods and can be included in the diet without concern for interactions.