Final answer:
Many foods can cause food allergies, with the eight most common allergens being milk, eggs, fish, shellfish, nuts, peanuts, wheat, and soybeans. Symptoms vary from mild itching to severe anaphylaxis, requiring emergency treatment. The prevalence of food allergies is about 6 percent in developed countries.
Step-by-step explanation:
Many foods have been identified as potential allergens that can cause food allergies in sensitive individuals. These allergens cause the immune system to react to harmless substances as if they were dangerous. The eight most common food allergens are milk, eggs, fish, shellfish, tree nuts, peanuts, wheat, and soybeans. Symptoms of food allergies can vary in severity, from mild reactions like itching and hives to severe conditions such as anaphylaxis that require immediate medical attention.
Common Symptoms of Food Allergies
- Tingling or itching in the mouth
- Hives, itching or eczema
- Swelling of the lips, face, tongue, and throat
- Wheezing, nasal congestion, or trouble breathing
- Abdominal pain, diarrhea, nausea, or vomiting
- Dizziness, lightheadedness or fainting
The prevalence of food allergies is higher in developed countries, and up to 6 percent of the population may be affected. It's also crucial to distinguish between food allergies and food intolerances, as the latter do not involve the immune system in the same way. Allergies can develop at any age and can be managed by avoiding known allergens and being prepared to treat reactions when they occur.