This archive report was first published on 23 June 2020.
Food allergies are a common health issue affecting millions of people worldwide. According to Medical News Today, approximately 250 million to 550 million people in developed and developing countries suffer from food allergies.
These allergies occur when the body's immune system reacts to a protein in food, causing the release of histamine, which leads to symptoms such as skin swelling, mucus production, and nerve irritation.
Unlike food intolerance, which can be caused by proteins, chemicals, or carbohydrates in food, or a lack of enzymes, food allergies are a specific immune system reaction.
Diagnosing food allergies can be done through various methods, including skin prick tests, blood tests, and eliminating diets. A skin prick test involves placing diluted foods on the patient's arm and piercing the skin to introduce the food into the system. An allergy is present when itching, swelling, or redness occurs.
Other diagnostic methods include blood tests and eliminating diets, where patients stop eating suspected foods for a period to observe whether symptoms improve.
Food allergies can be caused by a variety of foods, including eggs, fish, milk, nuts, peanuts, shellfish, soy, and wheat. Individuals with a family history of allergies are more likely to develop food allergies, with a 50% increased risk.
Other factors contributing to food allergies include certain medications containing sulphates and the penicillium family. Children are also more susceptible to developing food allergies, which can either fade away or worsen with age.
While symptoms can be treated with over-the-counter medications, the best approach is to avoid the food item causing the allergic reaction. Understanding and managing food allergies is crucial for a healthy lifestyle.
