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 Tuesday, 07 April 2020 08:22; Written by ifrpd-foodallergy

Vegan food poses unexpected allergen risk to consumers

People with allergies could be putting themselves at serious risk by consuming vegan food products that unbeknown to them may contain allergens such as milk and eggs.

Even when products carry precautionary allergen labels (PALs) such as ‘may contain’ labels – also pejoratively referred to as “precautionary alibi labels” - some consumers ignore them or fail to read the small print in the mistaken belief that vegan products are safe from allergens, reported Julia Pepler, director of Food Integrity Consulting, at a conference titled ‘Building an allergen-free culture’, organised by the Society of Food Hygiene & Technology.

“Vegan implies milk- and egg-free, whether intended or not,” said Pepler at the event held on 27 February in High Wycombe. “We know that consumers will tend to disregard [PALs]; they are confusing and sometimes they require the consumer to do their own risk assessment, which is unreasonable in my opinion.”

Details: Created on Friday, 27 March 2020 08:09; Written by ifrpd-foodallergy

Review: Probiotics boost efficacy of peanut allergy treatment in children

Desensitising children to peanut allergies through oral immunotherapy is more effective when done in conjunction with antihistamines and probiotics, according to a new review involving 1500 children.

While peanut oral immunotherapy (POIT) represents a promising treatment for peanut allergies in children, safety concerns remain a common barrier to widespread adoption.

Researchers from the University of Adelaide's Robinson Research Institute in Australia aimed to systematically assess available evidence to determine the risk and frequency of adverse events occurring during POIT by examining 27 previous studies of oral immunotherapy involving 1500 children.

Lead researcher Dr. Luke Grzeskowiak said the study, which was published in the journal Scientific Reports, identified three key factors that could reduce the risk of an adverse reaction when being treated for peanut allergy.

Dr. Grzeskowiak said the study found a 10 percent increase in the number of children who could tolerate the oral immunotherapy when given antihistamines and probiotics (co-treatment).