Final answer:
Spaghetti noodles contain a major allergen recognized by the FDA, which is gluten.
Step-by-step explanation:
Gluten is the major allergen recognized by the FDA in spaghetti noodles.
Spaghetti noodles are typically made with wheat, which contains the protein gluten. People with celiac disease, an autoimmune disorder, need to avoid consuming gluten as it can damage their digestive system.
Therefore, if someone has celiac disease or a gluten intolerance, it is important for them to choose gluten-free alternatives like rice noodles.