ภูมิแพ้อาหาร คือ?

อาการของการเป็นภูมิแพ้อาหารเป็นได้ทุกระบบของร่างกาย จากข้อมูลที่พบบ่อยคือ อาการทางระบบทางเดินอาหาร (เมื่อแพ้อาหารจะมีอาการคันปาก อาเจียน ปวดท้อง ท้องเสีย) อาการทางผิวหนัง (เมื่อแพ้อาหารจะมีอาการผื่นคัน ลมพิษ) และอาการทางระบบหายใจ (เมื่อแพ้อาหารจะมีอาการจาม น้ำมูก ไอ หอบ แน่นหน้าอก) ในบางรายอาการแพ้อาจรุนแรงถึงขั้นเสียชีวิตได้.

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Food Allergy?

As with any allergy, a food allergy develops when the immune system attacks a normally harmless substance and creates specific antibodies for this substance. From this point on, whenever the food allergy sufferer eats the food to which they're allergic, the antibodies respond by releasing histamine, which causes allergic symptoms to appear.

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FOOD ALLERGIES AND INTOLERANCES

A food sensitivity is an adverse reaction to a food that other people can safely eat, and includes food allergies, food intolerances, and chemical sensitivities.

Food allergies are sensitivities caused by a reaction of the body's immune system to specific proteins in a food. Current estimates are that food allergies affect as many as 6% of young children and 3% to 4% of adults.

In allergic individuals, a food protein is mistakenly identified by the immune system as being harmful. The first time the individual is exposed to such a protein, the body's immune system responds by creating antibodies called immunoglobulin E (IgE). When the individual is exposed again to the same food protein, IgE antibodies and chemicals such as histamine are released.Histamine is a powerful chemical that can cause a reaction in the respiratory system, gastrointestinal tract, skin or cardiovascular system. In the most extreme cases, food allergies can be fatal. Although any food can provoke an immune response in allergic individuals, a few foods are responsible for the majority of food allergies.

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Details: Created on Monday, 23 May 2022 18:15; Written by ifrpd-foodallergy

Early Introduction: Don’t just focus on peanut, milk and egg

Among children with food allergy, up to 40 per cent are allergic to multiple foods. While introducing potentially allergenic foods in early infancy has proven effective at preventing the development of food allergies in childhood, research shows this strategy is allergen-specific. A year-long pilot study has looked at the safety and efficacy of various combinations of foods introduced in infancy.

Details: Created on Thursday, 12 May 2022 19:32; Written by ifrpd-foodallergy

Most adults with food allergy don’t follow doctor’s orders

In the world’s first known study of its kind, most adults diagnosed with food allergy were found to not follow the dietary advice they had been given by a health professional. Several underlying reasons were found, offering health professionals an insight into what more they should consider when giving advice and guidance about allergy-related dietary restrictions.

After testing positive to a food challenge, adult patients participating in the study were given dietary advice based on sensitivity and severity of symptoms and their personal history. Dietary advice given fell into one of three options:

Strict avoidance of the allergenic food and ingredients [including products with precautionary allergen labelling (PAL)].
Avoidance of the allergenic food and ingredients but products with PAL allowed.
Small amounts of the allergenic food or ingredients allowed with dose adjustment and regular evaluation [only in case of mild (mainly oral allergy) symptoms during food challenge and/or mild reaction to only a high dose].