Which food item would be most concerning on the menu of a patient diagnosed with celiac disease?

Wheat bread is a significant concern for a patient diagnosed with celiac disease because it contains gluten, a protein found in wheat and other related grains such as barley and rye. Individuals with celiac disease have an autoimmune reaction to gluten, which can lead to damage in the small intestine and result in various health issues. This condition necessitates a strict gluten-free diet to prevent symptoms and complications.

In contrast, rice bread, quinoa, and corn tortillas are gluten-free options and are generally safe for consumption by individuals with celiac disease. Rice and corn are alternative grains that do not trigger the same autoimmune response, making them suitable food choices for patients on a gluten-free diet. Therefore, among these options, wheat bread poses the greatest risk to a patient with celiac disease.