A client with celiac disease selects a bowl of oatmeal with fresh fruit and skim milk, grapefruit juice, and coffee from the breakfast menu. Which action is most important for the nurse to implement?

Inform the client that oatmeal contains gluten.

Encourage the client to choose decaffeinated coffee.

Commend the client for selecting fat free milk.

Advise the client that too much fruit can irritate the colon.