為了探討延遲性食物過敏在香港的趨勢，生物保健科技(香港)有限公司在上年(2014年12月3日)的時間整合了過往十年(2004-2013)的測試記錄。根據隨機抽出的2920份報告作研究，重點分析於2005、2009及2013年的數據；發現在過去這段時間香港最常見的延遲性食物致敏原是：雞蛋(71.94%)、乳製品(65.25%)和小麥類(37.42%)。這三種食物過敏的普遍情況明顯有著上升的趨勢。綜合內地大學醫學院的研究，原來雞蛋、乳製品和小麥都位居於內地常見的過敏食物頭五位。由此可見，中港兩地在食物致敏原方面，都面對著相似的問題。

地區	香港	中國內地
頭五位最常見導致延遲性過敏的食物	1. 雞蛋 2. 牛奶 3. 麥類 4. 蠔 5. 雲哩拿豆	1. 雞蛋 2. 牛奶 3. 蟹 4. 蝦 5. 小麥

圖表一：香港與中國內地研究數據比較。

延遲性的食物過敏問題主要發於皮膚，當中濕疹更為最常見的過敏症狀。以2013年的數據為例，皮膚問題佔總過敏症狀的71%，其次是10%的呼吸系統問題，居其三的是6%的消化系統問題。從數據上得知，絕大部分的過敏症狀都表現在皮膚上；當中佔較大比數的就是濕疹，佔總比數的44%。其他的症狀還包括：過敏性鼻敏感、哮喘、腸胃敏感、活躍症和心血管病等慢性病。

在總結好所有資料後，我們於2014年12月初本地有機餐廳LOCOFAMA舉行了一次有關是次調查的發佈會。嘉賓鄧昌宇醫生指出延遲性過敏的症狀較多樣化，主要是因致敏食物刺激自身免疫系統，導致身體發炎所致。身體發炎會引起不同的過敏症狀，長遠來說更會增加患上慢性病的風險及加劇老化。另一嘉賓，許懿清中醫師也指出飲食不當令過敏體質圴人病情惡化，會激發過敏症狀。而中醫治病在於治療整個人，也不只是其中一個症狀。利用測試找到食物致敏原，並根據結果戒口，有助舒緩免疫系統的壓力，減輕症狀。

另外，從事有機事業廿年的車慧蘭女士亦分享歐美等地亦開始流行無敏的飲食概念，不同款式的無敏食品慢慢推出，味道及口感都做得跟普通食品相差不遠。各式各樣的代替食物推出，大大減低患者在戒口期間遇到的問題。

發佈會結束後，一眾嘉賓一用享用餐廳所提供的無麩質、無雞蛋、無牛奶的菜式，包括蕃茄藜麥飯、紅菜頭沙律、無奶忌廉蘑菇意粉。大家都很高興能在活動中獲得最新的過敏資訊，並吃到既美味又無敏的食物。

Quinoa (pronounced ‘keen-wah’), known as the “queen of grains”, is actually a seed. It cooks up slightly crunchy with a mild nutty flavor. Some people eat it like white rice, yet it has way more nutrients. It contains all of the nine essential amino acids, making it a perfect source of protein, especially for vegetarian. It is also packed with fibre which helps lower and control blood cholesterol, omega-3 unsaturated fats which help reduce risk of heart diseases, and other nutrients such as calcium, iron, phosphorus, vitamin B complex and E. Quinoa is a versatile and easy-to-prepare ingredient that can be even added to your salads. For those who haven’t already tasted quinoa, you must try this salad recipe and you will realize you don’t have to compromise on taste for health!

In order to find out the trend of Delated Food Allergy in Hong Kong, HK BioTek Limited had revised and analyzed data from the past 10 year studies in 2014. Based on the testing records in the last decade (2004-2013), 2920 reports had been randomly selected for the research. By stressing on the analysis of data in 2005, 2009 and 2013, researcher found out that most of people with food allergy are sensitive on egg (71.94%), dairy products (65.25%) and wheat (37.42%). Besides, referring to a meta-analysis study which done by medical schools in China, result shows that egg, dairy and wheat are investigated as the top 5 most common delayed food allergens in the Chinese population. Obviously, allergic problems (common with egg, dairy and wheat) are happening in both regions.

Regions	HONG KONG	CHINA
Top 5 items in causing delayed food allergy	1. Egg 2. Dairy 3. Wheat 4. Oyster 5. Vanilla bean	1. Egg 2. Dairy 3. Crab 4. Shrimp 5. Wheat

Table 1. The most common delayed food allergens in Hong Kong and China



Symptoms of delayed food allergy are diverse, ranging from eczema, diarrhea, headache and allergic rhinitis. Taking data from 2013 as an example, allergy caused symptoms are mainly localized on skin (71%), followed by respiratory system (10%) and then digestive system (6%). Among skin problems, eczema accounts for 44% cases. These data and symptoms have showed the high prevalence of delayed food allergy.

On the other hand, Ms. Yolanda Che from the local organic industry notes that allergen-free foods is getting more and more popular both globally and locally, reflecting the increase in the number of allergy sufferers in the society. With the high popularity of avoiding food allergens to soothe chronic symptoms in Europe and USA, manufacturers actively develop new allergen-free products, making these products to have similar tastes and textures as the ordinary foods.

After the conference, guests had tasted dishes including quinoa tomato rice, beetroot salad and mushroom pasta with diary-free cream. Participants were very pleased by receiving the latest information on food allergy in the activity, but also the allergen-free dishes.





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