Final answer:
Common food allergens include nuts, eggs, grains, milk, and shellfish. Symptoms of food allergies can range from itching in the mouth to difficulty breathing. Severe cases can lead to anaphylaxis.
Step-by-step explanation:
The common food allergens that can cause allergies include nuts, eggs, grains, milk, and shellfish. Symptoms of food allergies can vary but may include tingling or itching in the mouth, hives, swelling of the lips and throat, abdominal pain, diarrhea, and trouble breathing. In severe cases, a food allergy can lead to anaphylaxis, a life-threatening allergic reaction.